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

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

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

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

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