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Electricity

Electricity is the movement of electrons from one atom to another, critical for energy transfer. Atoms consist of protons, neutrons, and electrons, with conductors easily giving up electrons and insulators holding onto them tightly. The flow of these electrons is termed current, measured in amperes (amps). Voltage indicates the pressure that pushes electrons, impacting motor speed and torque, while resistance opposes electron flow and is measured in ohms. Understanding these fundamentals is essential for grasping how electricity powers our world.

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Electricity

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Presentation Transcript

  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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