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10 Cards in this Set
- Front
- Back
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Pole |
One of two ends of a magnet; where a magnets pull is strongest. |
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Magnetic field |
A region of magnetic force around a magnet |
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Electromagnet |
A temporary magnet created when current flows through wire wrapped an coils around an iron bar. |
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Direct current |
Current that flows in one direction through a circuit |
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Alternating current |
Current that flows in a circuit first in one direction, then in the opposite direction |
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Generator |
A device that creates alternating currents |
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Volt |
A unit for measuring the force that makes negative charges flow |
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Transformer |
A device in which alternating current in one coil produces current in a second coil |
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Energy transfer |
A change of energy from one form to another |
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Radiate |
To travel in all directions |
