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Electricity

Electricity. What is Electricity?. Electircal energy . Is the movement of electrons from one atom to another!. So..what ’ s an electron?. And where do all these extra electrons come from?. The Atom. Neutrons Protons Electrons. When can Electrons Flow?.

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Electricity

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  1. Electricity What is Electricity?

  2. Electircal energy • Is the movement of electrons from one atom to another! • So..what’s an electron? • And where do all these extra electrons come from?

  3. The Atom • Neutrons • Protons • Electrons

  4. When can Electrons Flow? • Can all atoms give up their electrons? • Some atoms electrons are loosely held others hold on to their electrons well • Atoms that give up electrons are called conductors • Atoms that do not give up electrons are called insulators

  5. - - - - - - + + + + + + Electron Flow • Current: is the flow of electrons • The measure for the flow of current is amperes or amps. • The electrical symbol is “A”

  6. What makes electrons flow? • Voltage is the measurement of electron pressure • Voltage is measured in…VOLTS! • The electrical symbol is “V”

  7. Think back to the Solar Car Voltage effects motor speed Amperage effects motor torque Voltage has what effect on an electric motor? Current/Amperage has what effect on an electric motor?

  8. Resistance • Resistance is a force that opposes the flow of electrons. Measured in Ohms() ?...! - - - - - - - - - - - - - - - -

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