Basic circuits, static electricity, and magnetism concepts for a middle school physical science unit. Front: the term. Back: a plain-language definition.
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- Circuit
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A closed path that allows electric current to flow from a power source through a conductor and back
- Closed circuit
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A circuit where the path is complete and allows electric current to flow
- Open circuit
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A circuit where the path is broken or incomplete, stopping the flow of electric current
- Conductor
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A material that allows electric current to flow through it easily
- Insulator
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A material that does not allow electric current to flow through it easily
- Resistance
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The opposition or difficulty that a material presents to the flow of electric current
- Electric current
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The flow of electric charge through a conductor
- Voltage
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The electrical force or pressure that pushes electric charges through a circuit
- Volt
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The unit used to measure voltage
- Ampere
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The unit used to measure electric current
- Ohm
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The unit used to measure electrical resistance
- Power
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The rate at which electrical energy is used or transferred
- Watt
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The unit used to measure electrical power
- Battery
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A device that converts chemical energy into electrical energy to power a circuit
- Switch
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A device that opens or closes a circuit to control the flow of electric current