Basic Circuits Foundations of Technology Basic Circuits © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching

Download Basic Circuits Foundations of Technology Basic Circuits © 2013 International Technology and Engineering Educators Association, STEM  Center for Teaching

Post on 29-Dec-2015

212 views

Category:

Documents

0 download

Embed Size (px)

TRANSCRIPT

  • Foundations of Technology

    Basic Circuits 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology Teacher Resource Unit 4 Lesson 4

    STEMCenter for Teaching and Learning

  • The BIG IdeaBig Idea:

    Troubleshooting allows users to continue to use and maintain the proper operation of a system or product.

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Basic CircuitsAll electronic circuits have a path for electrons to flow and an energy source.

    Electrons will flow from the negative(-) to the positive(+).

    The amount of electron flow will depend on resistance. 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Direct CurrentDirect Current (DC) electrons flow in only one direction.Examples: a battery, hand held electronics such as an iPod and other devices like an automobile

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Alternating CurrentAlternating Current (AC) electrons flow back and forth, negative (-) to positive (+) to negative (-)Examples: the electrical appliances at your house

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • The AtomAll matter is made of atoms.

    The atom is made of three things:ProtonsNeutronsElectrons

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Electrons rotate around the group of proton and neutrons.

    When electrons move from one atom to the next, it is called electron flow.

    Electrons 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Opposite electrical charges always attract and like electrical charges always repel.

    Balanced atoms normally have an equal number of electrons and protons, which means they are electrically neutral.

    Electrons 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    e-e-e+e-

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Ion particles occur when an atom loses or gains an electron causing an imbalance.

    When an imbalance occurs, Ion's will take or release an electron to become balanced again, causing electron flow.Ions 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Ions can be charged:

    Positive (+), which has one less electron than proton.Negative (-), which has one more electron than proton.The positive Ion attracts to a negative Ion to become balanced.

    Ions 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Electrons rotate around the atom at different orbits.Bound electrons orbit around the nucleus on the inner ringsFree electrons are loosely held and orbit around the outermost ring which is known as the valance ring

    Electron Orbits 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • An insulator is any material that prevents the flow of electrons.Insulators typically have five to eight free electrons in the outer ring, which means they are tightly held to the atom and cannot easily move.Insulator material includes glass, rubber and plastic.Insulators 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • A conductor is any material that easily allows electrons to flow.Conductors typically have one to three free electrons in the outer ring, which means they are loosely held to the atom and can easily move.Conductor material includes copper and gold.

    Conductors 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • A semiconductor is neither a good conductor or insulator.Semiconductors have exactly four free electrons in the outer orbit and are commonly used to manufacture diodes, transistors, and integrated circuit chips. Semiconductor material includes carbon, silicon, and germanium.

    Semiconductors 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Proposed by George Ohm, and is the relationship between Voltage, Current and Resistance.

    Ohm suggested that if you double the Voltage across something that provides resistance, then the current would double.

    Voltage (V) = Current (I) X Resistance (R)

    Ohms Law 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Voltage is the electrical force that moves electrons through a conductor.

    Voltage is electrical pressure that pushes electrons.

    Voltage 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Current is the quantity or flow rate of electrons moving past a point.

    Current flow is also known as amperage, or amps for short.

    Current 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Resistance is the force that reduces or stops the flow of electrons and opposes voltage.

    Resistance 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • In a Series circuit, the current through two or more resistors is the same, and the circuit is connected in a series. The total resistance of the collection is the sum of the individual resistances.In series, electrons have only one path to follow to complete the circuit and must travel through all components.

    Resistors in Series 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • In a Parallel circuit, the voltage through two or more resistors is the same, and the circuit is connected in parallel. The total resistance of the collection is divided among the three resistors .In parallel, electrons have multiple paths to follow to complete the circuit and do not need to travel through all components in the circuit to do so.

    Resistors in Parallel 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Parts of the Electronics Kit 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Parts of the Electronics Kit 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Parts of the Electronics Kit 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Resistors have four (4) color bands on them called the color codeBand 1 = 1st DigitBand 2 = 2nd DigitBand 3 = Multiplier.Band 4 = ToleranceGold = 5% Silver = 10%

    Color Codes 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • The Breadboard includes two sides (a-e and f-j) and the ditch or the space in the middle.The holes are connected by rows not columns.

    Building a Circuit 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Build the circuit below:

    Practice Building a Circuit 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    1000 ohms resistor (brown, black, red, gold)

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Use your simple circuit and measure for Volts, Current and Resistance.

    Practice Building a Circuit 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

  • Do the math using Ohms Law to find the actual value of the resistor - What does it measure?

    Practice Building a Circuit 2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    2013 International Technology and Engineering Educators Association, STEMCenter for Teaching and Learning Foundations of Technology

    STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSlide #*TITLE SLIDE12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education AssocSTEMCenter for Teaching & Learning Engineering byDesign[Authors: Please include teacher notes appropriately.] International Technology Education AssocSlide #*12/01/2009STEMCenter for Teaching & Learning Engineering byDesign International Technology Education A...

Recommended

View more >