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18 Cards in this Set
- Front
- Back
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Electricity |
The movement of particles around an atom that creates pure energy |
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Electric current |
The flow of electricity along a conductor |
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Conductor |
Any material that conducts electricity |
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Nonconductor |
AKA insulator. A material that does not transmit electricity. |
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Direct current |
A constant, even-flowing current that travels in one direction only and is produced by chemical means |
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Converter |
An apparatus that changes direct current to alternating current |
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Alternating current |
A rapid and interrupted current, flowing first in one direction and then in the opposite direction |
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Rectifier |
An apparatus that changes alternating current to direct current |
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Volt |
Unit that measures the pressure or force that pushes electric current forward through a conductor |
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Ampere |
Unit that measures the strength of an electric current |
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Milliampere |
The current used for facial and scalp treatments. 1/1000th of an ampere |
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Ohm |
Unit that measures the resistance of an electric current |
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Watt |
Unit that measures how much electric energy is being used in one second |
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Kilowatt |
1,000 watts. |
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Fuse |
Prevents excessive current from passing through a circuit. Designed to blow out or melt when the wore becomes too hot from overloading the circuit with too much current |
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Circuit breaker |
Switch that automatically interrupts or shuts off an electric circuit at the first indication of an overload |
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Grounding |
Completes an electric circuit and carries the safely away |
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Alternating current |
What type of current changes directions 60 times per second? |
