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19 Cards in this Set
- Front
- Back
Magnetism
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The force of attraction or repulsion of magnetic materials
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Magnetic Field
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Area surrounding a magnet that applies a force (a push or pull) without actually touching an object
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Magnetic Materials
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A material made of iron, nickel, or cobalt that is attracted to a magnetic field
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Electric Current
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The flow of electrical energy
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Electromagnetism
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The interaction of electric currents and magnetic fields; electric currents can be used to create magnetic fields and magnetic fields can be used to create electricity |
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Electromagnet
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Temporary magnet created by wrapping a current carrying wire around an iron core |
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Electric Motor
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Device that transforms electrical energy into mechanical energy
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Generator
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Device that uses a magnetic field to turn mechanical energy into electrical energy |
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Turbine
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Huge wheels or fan blades that rotate when pushed by water, wind, or steam; are used to spin generators at power plants to make electricity |
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Electric Circuit
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A complete, unbroken path through which electricity flows
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Conductor
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An object or type of material that allows the flow of electrical or thermal energy
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Transformer
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An object that changes electrical energy into another form of energy, for example a buzzer or light bulb
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Buzzer
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A transformer that changes electrical energy into sound energy
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Light bulb
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A transformer that changes electrical energy into radiant energy
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Closed Circuit
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A circuit with a complete path that allows electricity to flow to the transformer to change electrical energy into another type of energy
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Open Circuit
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A circuit with an incomplete path that does not allow electricity to flow to the transformer
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Battery
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Changes stored chemical energy into electrical energy when hooked up to a circuit; used as a source of electricity
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Solar Cell
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Changes solar energy from the sun into electrical energy; used as a source of electricity
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Switch
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A device used to open and close a circuit
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