MITES Middle School Introduction To Engineering Systems

Expectations for Behavior

Be Respectful To teacher To Peers To Facilities

Follow 1st Request From Teachers or Peers

Golden Rule Treat others the way you want to

be treated

2

Engineering

Engineering is the discipline skill and

profession of acquiring and applying

scientific economic social and practical

knowledge in order to design and build

structures machines devices systems

materials and processes Electrical

Civil

Mechanical

Aerospace

3

Engineering Design Process

4

Lab Safety Concerns

5

The Ultimate Goal - Presentation

Mechanicalelectrical energy

Motorsgenerators

Electricity and magnets

Electric motor

Electromagnetic generator

Solar energy and panels

Solar buzzer amp openclosed circuits

Solar car and motor

Windmill and wind energy

6

Every Group Must Make a Poster

~7 minutes per group

Define or Demonstrate important terms or

materials

Why is it important to understand these

concepts

Describe how the concept or technology

works

Give examples of application (use your

microgrid andor real world examples)

7

Forms of Energy

Electromagnets

Motors vs Generators

9

Objective of the lesson

Review forms of Energy

Check understanding of simple

vocabulary

Describe a simple circuit

Compare Magnetic field and Magnetic

Force

Review Battery operation

Compare electric motors and generators

Build a simple motor

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Expectations for Behavior

Be Respectful To teacher To Peers To Facilities

Follow 1st Request From Teachers or Peers

Golden Rule Treat others the way you want to

be treated

2

Engineering

Engineering is the discipline skill and

profession of acquiring and applying

scientific economic social and practical

knowledge in order to design and build

structures machines devices systems

materials and processes Electrical

Civil

Mechanical

Aerospace

3

Engineering Design Process

4

Lab Safety Concerns

5

The Ultimate Goal - Presentation

Mechanicalelectrical energy

Motorsgenerators

Electricity and magnets

Electric motor

Electromagnetic generator

Solar energy and panels

Solar buzzer amp openclosed circuits

Solar car and motor

Windmill and wind energy

6

Every Group Must Make a Poster

~7 minutes per group

Define or Demonstrate important terms or

materials

Why is it important to understand these

concepts

Describe how the concept or technology

works

Give examples of application (use your

microgrid andor real world examples)

7

Forms of Energy

Electromagnets

Motors vs Generators

9

Objective of the lesson

Review forms of Energy

Check understanding of simple

vocabulary

Describe a simple circuit

Compare Magnetic field and Magnetic

Force

Review Battery operation

Compare electric motors and generators

Build a simple motor

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Engineering

Engineering is the discipline skill and

profession of acquiring and applying

scientific economic social and practical

knowledge in order to design and build

structures machines devices systems

materials and processes Electrical

Civil

Mechanical

Aerospace

3

Engineering Design Process

4

Lab Safety Concerns

5

The Ultimate Goal - Presentation

Mechanicalelectrical energy

Motorsgenerators

Electricity and magnets

Electric motor

Electromagnetic generator

Solar energy and panels

Solar buzzer amp openclosed circuits

Solar car and motor

Windmill and wind energy

6

Every Group Must Make a Poster

~7 minutes per group

Define or Demonstrate important terms or

materials

Why is it important to understand these

concepts

Describe how the concept or technology

works

Give examples of application (use your

microgrid andor real world examples)

7

Forms of Energy

Electromagnets

Motors vs Generators

9

Objective of the lesson

Review forms of Energy

Check understanding of simple

vocabulary

Describe a simple circuit

Compare Magnetic field and Magnetic

Force

Review Battery operation

Compare electric motors and generators

Build a simple motor

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Engineering Design Process

4

Lab Safety Concerns

5

The Ultimate Goal - Presentation

Mechanicalelectrical energy

Motorsgenerators

Electricity and magnets

Electric motor

Electromagnetic generator

Solar energy and panels

Solar buzzer amp openclosed circuits

Solar car and motor

Windmill and wind energy

6

Every Group Must Make a Poster

~7 minutes per group

Define or Demonstrate important terms or

materials

Why is it important to understand these

concepts

Describe how the concept or technology

works

Give examples of application (use your

microgrid andor real world examples)

7

Forms of Energy

Electromagnets

Motors vs Generators

9

Objective of the lesson

Review forms of Energy

Check understanding of simple

vocabulary

Describe a simple circuit

Compare Magnetic field and Magnetic

Force

Review Battery operation

Compare electric motors and generators

Build a simple motor

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Lab Safety Concerns

5

The Ultimate Goal - Presentation

Mechanicalelectrical energy

Motorsgenerators

Electricity and magnets

Electric motor

Electromagnetic generator

Solar energy and panels

Solar buzzer amp openclosed circuits

Solar car and motor

Windmill and wind energy

6

Every Group Must Make a Poster

~7 minutes per group

Define or Demonstrate important terms or

materials

Why is it important to understand these

concepts

Describe how the concept or technology

works

Give examples of application (use your

microgrid andor real world examples)

7

Forms of Energy

Electromagnets

Motors vs Generators

9

Objective of the lesson

Review forms of Energy

Check understanding of simple

vocabulary

Describe a simple circuit

Compare Magnetic field and Magnetic

Force

Review Battery operation

Compare electric motors and generators

Build a simple motor

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

The Ultimate Goal - Presentation

Mechanicalelectrical energy

Motorsgenerators

Electricity and magnets

Electric motor

Electromagnetic generator

Solar energy and panels

Solar buzzer amp openclosed circuits

Solar car and motor

Windmill and wind energy

6

Every Group Must Make a Poster

~7 minutes per group

Define or Demonstrate important terms or

materials

Why is it important to understand these

concepts

Describe how the concept or technology

works

Give examples of application (use your

microgrid andor real world examples)

7

Forms of Energy

Electromagnets

Motors vs Generators

9

Objective of the lesson

Review forms of Energy

Check understanding of simple

vocabulary

Describe a simple circuit

Compare Magnetic field and Magnetic

Force

Review Battery operation

Compare electric motors and generators

Build a simple motor

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Every Group Must Make a Poster

~7 minutes per group

Define or Demonstrate important terms or

materials

Why is it important to understand these

concepts

Describe how the concept or technology

works

Give examples of application (use your

microgrid andor real world examples)

7

Forms of Energy

Electromagnets

Motors vs Generators

9

Objective of the lesson

Review forms of Energy

Check understanding of simple

vocabulary

Describe a simple circuit

Compare Magnetic field and Magnetic

Force

Review Battery operation

Compare electric motors and generators

Build a simple motor

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Forms of Energy

Electromagnets

Motors vs Generators

9

Objective of the lesson

Review forms of Energy

Check understanding of simple

vocabulary

Describe a simple circuit

Compare Magnetic field and Magnetic

Force

Review Battery operation

Compare electric motors and generators

Build a simple motor

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

9

Objective of the lesson

Review forms of Energy

Check understanding of simple

vocabulary

Describe a simple circuit

Compare Magnetic field and Magnetic

Force

Review Battery operation

Compare electric motors and generators

Build a simple motor

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Reviews the Forms of Energy

Potential Kinetic

10

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Vocabulary

Can you tell me what these are

Electron

Proton

Electrical Conductor

Electrical Insulator

11

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Matter and atoms

All matter is made of atoms

12

Structure of an ATOM

All atoms are made up of

electrons protons and neutrons

Protons and neutrons form

nucleus

Electrons orbit around the

nucleus

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Law of Electric Charges

Same charge repel

Opposite charge attract

(similar to magnets)

Objects can become charged by

friction conduction and induction

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Conductors are a material which contains movable

electric charges

Almost all metals such as gold silver copper iron

and lead are good conductors

Polymer glass paper wood or Teflon are very

good electrical insulators

14

Conductors and Insulators

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Insulators and Conductors

Have you ever noticed that

electrical cords are often made

from metal and plastic Why

What is the most common

material used in wires

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

MORE Vocabulary

Simple Circuit

Electrical Current (I) amperes (A)

Voltage (V) volts (V)

Resistance (R) ohms (Ω)

Power (P) watts (W)

Electric Force

Electric Field

16

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Electric Circuit

Circuit diagrams are a pictorial way of

showing circuits Electricians and engineers

draw circuit diagrams to help them design

the actual circuits

17

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Components of Electric circuit

18

Circuit

component

Definition Examples

Electric Source Source of electric

energycurrent

Battery Solar cell

Electric generator

Electric Load anything that usesabsorbs the

energy that is being delivered

by the electric current in a

circuit

Lamps fan washing

machine computer

Resistance

Switches A device that connect circuit

allow flow of electrons when

ldquoonrdquo

Electronic switches

Mechanical switch

Measuring

devices

Measure current voltage and

power

Ammeter

Voltmeter

wattmeter

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Symbols

the Ammeter

Voltmeter

resistor

Switch

battery

Light bulb Light bulb

19

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Current Electricity

Moving chargeselectrons

Current electricity is controlled movement

of charges through a path usually a

conductor of electricity

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

This is a strong current

21

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Current (I)

Current is the rate at which

charges pass a given point

Similar to water flow in a

hose

Units amperes amps

Symbol for ampere A

The symbol for current is the

letter I

22

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Voltage (V)

Voltage= Potential difference= Pressure

difference in water hose

Units Volts

Measured by a voltmeter

Voltmeter connected always

acrossparallel

Measurement of Electromotive Force

(remember this)

Voltage in your house

Voltage of AA batteries

An electric eel can create a voltage of more than 600 V

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Resistance

24

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Resistance and Ohmrsquos Law

25

R = VI or V = R x I

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Do some simple math

Using Ohms Law

What is the voltage if the current is 2 A and

the resistance is 12 Ω

Step 1

Write the equation for voltage

V = I times R

Step 2

Replace the current and resistance with the

measurements given in the problem and solve

V = 2 A times 12 Ω

V = 24 V

26

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

You try it

Find the voltage if the current is 2 A and

the resistance is 2 Ω

The resistance of an object is 10 Ω If the

current in the object is 2 A what voltage

must be used

27

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Electric Power

the rate at which electrical energy is

converted into other forms of energy

power = voltage times current or P = V times I

28

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

A Little more math Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 1 Write the equation for power

P = V times I

Step 2 Replace the voltage and current with

the measurements given in the problem

and solve

P = 120 V times 042 A

P = 504 W or 00504 kW

29

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Power and Energy A small television set draws

a current of 042 A at 120 V What is the

power rating for the television How much

energy is used if the television is on for 3 h

Step 3

Write the equation for electrical energy

E = P times t

Step 4

Replace the power and time with the

measurements given in the problem and

solve

E = 00504 kW times 3 h so E = 01512 kWh

30

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Your turn again

A computer monitor draws 12 A at a voltage

of 120 V What is the power rating of the

monitor How much energy is used in 3

hours At $865kWh how much did it cost

to run run the computer monitor

P = V x I

And

E = P x t

31

Electric Field

32

Electric Field

32

Electric Force

33

httpwww1stardrivecomsolarelectrichtm

Making an Electromagnet

34

Making an Electromagnet

34

Electromagnetism Magnetism is a result of

electrons spinning on their

own axis around the nucleus

(electromagnet principle)

So an external magnetic field

will have an effect on

electrons in that field

If the field moves the

electrons in it will try to move

and thus cause a current

nucleu

s

How to generate electricity

Law of Energy Conservation

Energy can neither be created or destroyed It changes

from one form to another

Direct Energy conversion to Electricity

a) From Chemical energy ( Example Batteries fuel cells)

b) From mechanical energy and magnetic energy (Generators)

c) From light energy (solar panels)

d) From thermal energy (Thermocouples)

e) From biomass( Electric eel )

CellBatteries Anatomy

Electrodes-

Cathode Positive terminal

Anode negative terminals

Electrolyte-

Acid(Lead-acid battery)

Alkaline (Alkaline

batteries)

37

How a cell works

38

How a Generator works

39

Electromotive

Force creates

Electromagnetic

Induction

Generating Electricity

Faradays Law Electric force is generated due to a

changing Magnetic -field through a conducting coil

also called principle of induction

Moving magnet stationary coil Moving coil stationary magnet

Faradayrsquos Law bull Voltage generated

proportional to

1 Number of coil turns N

2 Strength of the magnets

3 change in magnetic field

a) Speed of rotation

Approximate pull force over 12 lbs

Approximate pull force over 45 lbs

Speed= 1 rotationsec Vgen= 8 volts

Speed= 2 rotationsec Vgen= 16 volts

How a motor works

Look familiar Why does an electric motor do what it

does

42

Mnemonic for Electric Motors

43

wwwexplainthatstuffcom

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

How to generate electricity

Law of Energy Conservation

Energy can neither be created or destroyed It changes

from one form to another

Direct Energy conversion to Electricity

a) From Chemical energy ( Example Batteries fuel cells)

b) From mechanical energy and magnetic energy (Generators)

c) From light energy (solar panels)

d) From thermal energy (Thermocouples)

e) From biomass( Electric eel )

CellBatteries Anatomy

Electrodes-

Cathode Positive terminal

Anode negative terminals

Electrolyte-

Acid(Lead-acid battery)

Alkaline (Alkaline

batteries)

37

How a cell works

38

How a Generator works

39

Electromotive

Force creates

Electromagnetic

Induction

Generating Electricity

Faradays Law Electric force is generated due to a

changing Magnetic -field through a conducting coil

also called principle of induction

Moving magnet stationary coil Moving coil stationary magnet

Faradayrsquos Law bull Voltage generated

proportional to

1 Number of coil turns N

2 Strength of the magnets

3 change in magnetic field

a) Speed of rotation

Approximate pull force over 12 lbs

Approximate pull force over 45 lbs

Speed= 1 rotationsec Vgen= 8 volts

Speed= 2 rotationsec Vgen= 16 volts

How a motor works

Look familiar Why does an electric motor do what it

does

42

Mnemonic for Electric Motors

43

wwwexplainthatstuffcom

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

CellBatteries Anatomy

Electrodes-

Cathode Positive terminal

Anode negative terminals

Electrolyte-

Acid(Lead-acid battery)

Alkaline (Alkaline

batteries)

37

How a cell works

38

How a Generator works

39

Electromotive

Force creates

Electromagnetic

Induction

Generating Electricity

Faradays Law Electric force is generated due to a

changing Magnetic -field through a conducting coil

also called principle of induction

Moving magnet stationary coil Moving coil stationary magnet

Faradayrsquos Law bull Voltage generated

proportional to

1 Number of coil turns N

2 Strength of the magnets

3 change in magnetic field

a) Speed of rotation

Approximate pull force over 12 lbs

Approximate pull force over 45 lbs

Speed= 1 rotationsec Vgen= 8 volts

Speed= 2 rotationsec Vgen= 16 volts

How a motor works

Look familiar Why does an electric motor do what it

does

42

Mnemonic for Electric Motors

43

wwwexplainthatstuffcom

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

How a cell works

38

How a Generator works

39

Electromotive

Force creates

Electromagnetic

Induction

Generating Electricity

Faradays Law Electric force is generated due to a

changing Magnetic -field through a conducting coil

also called principle of induction

Moving magnet stationary coil Moving coil stationary magnet

Faradayrsquos Law bull Voltage generated

proportional to

1 Number of coil turns N

2 Strength of the magnets

3 change in magnetic field

a) Speed of rotation

Approximate pull force over 12 lbs

Approximate pull force over 45 lbs

Speed= 1 rotationsec Vgen= 8 volts

Speed= 2 rotationsec Vgen= 16 volts

How a motor works

Look familiar Why does an electric motor do what it

does

42

Mnemonic for Electric Motors

43

wwwexplainthatstuffcom

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

How a Generator works

39

Electromotive

Force creates

Electromagnetic

Induction

Generating Electricity

Faradays Law Electric force is generated due to a

changing Magnetic -field through a conducting coil

also called principle of induction

Moving magnet stationary coil Moving coil stationary magnet

Faradayrsquos Law bull Voltage generated

proportional to

1 Number of coil turns N

2 Strength of the magnets

3 change in magnetic field

a) Speed of rotation

Approximate pull force over 12 lbs

Approximate pull force over 45 lbs

Speed= 1 rotationsec Vgen= 8 volts

Speed= 2 rotationsec Vgen= 16 volts

How a motor works

Look familiar Why does an electric motor do what it

does

42

Mnemonic for Electric Motors

43

wwwexplainthatstuffcom

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

Generating Electricity

Faradays Law Electric force is generated due to a

changing Magnetic -field through a conducting coil

also called principle of induction

Moving magnet stationary coil Moving coil stationary magnet

Faradayrsquos Law bull Voltage generated

proportional to

1 Number of coil turns N

2 Strength of the magnets

3 change in magnetic field

a) Speed of rotation

Approximate pull force over 12 lbs

Approximate pull force over 45 lbs

Speed= 1 rotationsec Vgen= 8 volts

Speed= 2 rotationsec Vgen= 16 volts

How a motor works

Look familiar Why does an electric motor do what it

does

42

Mnemonic for Electric Motors

43

wwwexplainthatstuffcom

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

Faradayrsquos Law bull Voltage generated

proportional to

1 Number of coil turns N

2 Strength of the magnets

3 change in magnetic field

a) Speed of rotation

Approximate pull force over 12 lbs

Approximate pull force over 45 lbs

Speed= 1 rotationsec Vgen= 8 volts

Speed= 2 rotationsec Vgen= 16 volts

How a motor works

Look familiar Why does an electric motor do what it

does

42

Mnemonic for Electric Motors

43

wwwexplainthatstuffcom

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

How a motor works

Look familiar Why does an electric motor do what it

does

42

Mnemonic for Electric Motors

43

wwwexplainthatstuffcom

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

Mnemonic for Electric Motors

43

wwwexplainthatstuffcom

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

Activity ndash Build a Motor

Materials needed

Three ring-shaped magnets

Insulated wire (about 4 feet is needed)

Wire cutters strippers

One D-size battery

Two large paper clips

Tape

Click here for the procedure

References

httpamascicommisconelecahtmllight

Woodford Chris (2007) Electric Motors Retrieved from

httpwwwexplainthatstuffcomelectricmotorshtml [Accessed 62012]

Museum of Science and Industry Chicago (2012) Retreived

from httpwwwmsichicagoorgonline-scienceactivities

[accessed 62012]

Guard John 1 Star Drive

httpwww1stardrivecomsolarelectrichtm [accessed

62012]

45