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14 Cards in this Set
- Front
- Back
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Alternating current |
Electric current that reverses its direction of flow in a regular pattern |
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Direct current |
Electric current that flows only in One Direction |
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Electric motor |
Device that converts electric energy to mechanical energy by using the magnetic forces between an electromagnet and a permanent magnet to make a rotate |
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Electromagnet |
Temporary magnet made by wrapping a wire coil carrying a current around an iron core |
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Electromagnetic induction |
Process in which electric current is produced when a wire Loop by a changing magnetic field |
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Galvanometer |
A device that uses an electromagnet to measure electric current |
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Generator |
Device that uses electromagnetic induction to convert mechanical energy to electrical energy |
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Magnetic domains |
Group of atoms in a magnetic material with the magnetic poles of the atoms positioning in the same direction |
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Magnetic field |
Surrounds a magnet and exerts a force on are there magnets and objects made of magnetic material |
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Magnetic pole |
Region on a magnet where the magnetic force exerted by a magnet is strongest |
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Magnetism |
The properties and interactions of magnets |
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Solenoid |
A wire wrapped into a cylindrical coil |
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Transformer |
Device that uses electromagnetic induction to increase or decrease the voltage of an alternating current |
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Turbine |
Large wheel that rotates when pushed by steam, wind, or water and provides mechanical energy to a generator |
