Electricity & Magnets Vocabulary

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Alternating Current

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An electric current that reverses direction periodically, commonly used in household power supplies.

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Ampere (Amps)

Back

The unit of electric current, defined as one coulomb of charge passing through a point in a circuit per second.

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Chemical Energy

Back

Energy stored in the bonds of chemical compounds; released during a chemical reaction.

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Circuit

Back

A closed loop through which electric current can flow.

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Closed Circuit

Back

A complete electrical circuit through which current can flow without interruption.

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Current

Back

The flow of electric charge in a circuit, measured in amperes (A).

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Direct Current

Back

An electric current that flows in one direction only, commonly used in batteries.

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Electrical Energy

Back

Energy caused by the movement of electric charges, used to power devices.

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Electricity

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The presence and flow of electric charge, which can produce energy and power.

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Electromagnet

Back

A type of magnet that generates a magnetic field through the flow of electric current.