ENERGY

What is ENERGY?Energy is the ability

to do _______Work

Work occurs when a _____ causes an object to _____ in

the same direction as the force.

moveforce

DO NOW:

•Page 25 in Do Now packet that was given out

yesterday

All forms of energy can be classified as

Kinetic or potential. The two

basic states of energy. So, what’s

the difference?

1) Potential energy is stored energy

due to and object’s _____________Position

POTENTIAL ENERGY

2) An object that is lifted from its position on Earth has __________ potential

Energy which depends on ______ and mass

gravitational

POTENTIAL ENERGY

height

3) Massive objects have _____

potential energy than less massive

objects

more

POTENTIAL ENERGY

4) An object at a higher elevation will have _____ potential

energy than an object at a lower elevation

more

POTENTIAL ENERGY

1) Kinetic is energy of

___________Motion

KINETIC ENERGY

2) Kinetic depends on the _____ and the _______ of an

object.

MASS

KINETIC ENERGY

SPEED

3) Faster objects have ____ kinetic energy than

slower objects.

More

KINETIC ENERGY

FORMS OF ENERGYBoth basic states of energy,

Kinetic and potential, can exist in many forms!

The total ________ energy of the particles in

matter. (molecular

motion)

KineticTHERMAL (HEAT)

Heat energy STORED within the _____. Ex:

Volcanic eruptions, geysers

EarthGEOTHERMAL (HEAT)

Energy STORED in chemical ____ that can be released. Ex: food, fossil fuels, battery acid

bonds

CHEMICAL

Energy STORED in the ________ (center) of an atom.

Ex: nuclear bombs

nucleus

NUCLEAR

Energy with which ______ objects perform work.

Ex: Wind, flowing water, using a hammer

movingMECHANICAL

A type of mechanical energy. It is the energy produced

when objects ________. Ex: tuning

fork, bell

vibrate

SOUND

A form of _______ energy that moves in a ______.

Ex: lamp, stars

radiantLIGHT

wave

A form of energy produced by the ________

of ________movement

ELECTRICITY

electrons

All forms of energy that come from the ______.SUN

SOLAR ENERGY

Stored energy due to a change in the shape

of an object. Ex: _______________A stretched rubber

band

STORED MECHANICAL ENERGY:

STORED MECHANICAL ENERGY:

Do you remember the LAW OF

CONSERVATION OF MASS AND ENERGY?

ENERGY TRANSFORMATIONS

Law of Conservation of ENERGY: (same for mass)Mass/ NRG ____________

Mass/ NRG ______________

Mass/ Energy can only __________

Can’t be madeCan’t be destroyed

Change form!!!

Please read the paragraph…

Energy is constantly changing

form…

ENERGY TRANSFORMATIONS

ENERGY TRANSFORMATIONS

Very often during the energy transformation process,

some ____ energy is produced due to friction.

This is wasted energy and is lost to the

environment.

heat

UNUSABLE ENERGY:

An energy resource that is

_______________________________________.Being used faster

than Earth Produces it

What is a NON-RENEWABLE RESOURCE?

Examples:__________________Fossil Fuels,

minerals

What is a NON-RENEWABLE RESOURCE?

To make our non-renewable

resources last longer we can

________________________________________

_____.

ReduceReuse

Recycle

What is a NON-RENEWABLE RESOURCE?

An energy resource that is

_______________________________________.

Earth supplies faster than we use

it “unlimited”

What is a RENEWABLE RESOURCE?

Examples: _______________________________

Solar, wind, biomass (trees

etc..)

What is a RENEWABLE RESOURCE?

A renewable resource produces less

_________ (substance that can harm living

things and/or the environment

pollution

What is a RENEWABLE RESOURCE?

EARTH DAY GALLERY TOUR!

Example:

Do Now: Focused Free Write

What is different about how each of the three popcorns? How were they made? Explain!

1. HEAT: the energy of moving __________particles

HEAT NOTES

2. HOT OBJECTS contain __________ heat than than cold ones

more

HEAT NOTES

3. All objects above __________ contain heat

Absolute zero

HEAT NOTES

4. Heat always flows from ______ objects to ______ objects until the objects reach _____ temperature.

hotter

HEAT NOTES

cooler

same

4. The greater the difference in temperature between the two objects, the _________ heat is transferred.

faster

HEAT NOTES

HOW IS HEAT TRANSFERRED BETWEEN

OBJECTS?

-Conduction is a form of heat transfer by direct _______ of molecules

contact

1) CONDUCTION

-Conduction occurs fastest in _______solids

1) CONDUCTION

-_______ are the best conductors of he heat energy.

metals1) CONDUCTION

-Convection is a form of heat transfer that occurs by up and down motions of a _______ differences in ______

fluid

2) CONVECTION

density

-occurs ONLY in _____ which are liquids and gases!

fluids2) CONVECTION

-radiation is the transfer of heat in _____.

waves

3) RADIATION

-Electromagnetic radiation travels at the speed of ______.light

3) RADIATION

-Electromagnetic energy can travel though a _______ (empty space)vacuum

3) RADIATION