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# Electric Motors

## A device that changes electrical energy into mechanical energy. Components include an electrical circuit with part of the wires inside a magnetic field.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Electric Motors

Covers the design and function of electric motors.
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• Interactive Simulations

## Electric Motor

Learn how magnetic forces acting on current-carrying wires can be used to drive an electric motor.
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• Interactive Simulations

## AC Transformer

Learn about how high-voltage alternating current (AC) electricity generated by a power station is converted into low-voltage AC electricity for your home.
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• Interactive Simulations

## Telegraph

Explore the concept of Morse Code and how signals are transfered over great distances by using telegraph machines based on electromagnets
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• Video

## Build an Electric Motor

Explains how electric motors work and describes how to construct a simple electric motor.
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## Electric Motors Quiz

Reviews the properties of magnetic currents.
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• Real World Application