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11 Cards in this Set
- Front
- Back
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Magnetism |
the properties and interactions of magnets |
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Magnetic Field |
region surrounding a magnet that exerts a force on other magnets and objects made of magnetic materials |
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Magnetic Poles |
region on a magnet where the magnetic force exerted by a magnet is strongest; like poles repel and opposite poles-attract |
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Electromagnetism |
the interaction between electric charges and magnets |
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Electromagnetic Force |
the attractive or repulsive force between electric charges and magnets |
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Electromagnet |
temporary magnet created when there is a current in a wire coil |
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Electric Motor |
device that converts electrical energy to mechanical energy by using the magnetic forces between an electromagnet and a permanent magnet to make a shaft rotate |
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Generators |
device that uses electromagnetic induction to convert mechanical energy to electrical energy |
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Turbine |
large wheel that rotates when pushed by steam, wind, or water and provides mechanical energy to a generator |
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Direct Current (DC) |
electric current that flows in only one direction |
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Alternating Current |
electric current that reverses its direction of flow in a regular pattern |
