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PhET Signal Circuit - Circuit, Electricity, Current

PhET Signal Circuit - Circuit, Electricity, Current

Why do the lights turn on in a room as soon as you flip a switch? Flip the switch and electrons slowly creep along a wire. The light turns on when the signal reaches it. This simulation of a Signal Circuit is from the Physics Education Technology website of University of Colorado. Included are links to related topics and additional ideas and activities for teachers to use.

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