Download Electricity

Electricity
What is Electricity?
Electircal energy

Is the movement of electrons from one
atom to another!
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So..what’s an electron?
– And where do all these extra electrons
come from?
The Atom
Neutrons
 Protons
 Electrons

When can Electrons Flow?

Can all atoms give up their electrons?
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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
Electron Flow
Current: is the flow of electrons
 The measure for the flow of current is
amperes or amps.
 The electrical symbol is “A”

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What makes electrons flow?

Voltage is the measurement of electron
pressure

Voltage is measured in…VOLTS!

The electrical symbol is “V”
Think back to the Solar Car
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
Voltage has what effect on an electric
motor?
Voltage effects motor
speed
Current/Amperage has what effect on
an electric motor?
Amperage effects motor
torque
Resistance

Resistance is a force that opposes the flow of
electrons. Measured in Ohms()
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