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Generators and Motors

Electrical or kinetic energy can be generated using principles of magnetism.

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.

Generators and Motors

Students will learn how a generator (and thus motor) works. The lesson is on a conceptual basis and compliments the lesson on electromagnetic induction.
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Electric Generators

Discusses the construction and function of an electric generator. It also points out the relationship between maximum voltage and current compared to effective voltage and current for an AC generator.
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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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• Video

Capacitor Energy Part II

Explains why the handle of a generator/motor turns in same direction upon the release of energy from the capacitor.
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• Video

How Electricity is Generated

Explains how electricity is generated using Lenz's law.
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• Video

The Insides of a Generator

How a generator (and motor) work is explained here. Also provides a demonstration using a generator and oscilloscope.
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• Video

Everyday Physics - Electric Generators

Demonstrates the difference between direct current generators and alternating current generators.
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• 0

Generators and Motors Quiz - PPB

Understanding how a generator works and how to harness magnetic field energy to run a motor.
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Electric Generators Quiz

Reviews the different types of currents and problems involving the power of AC and DC generators.
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• Critical Thinking

Generators and Motors Discussion Questions

A list of student-submitted discussion questions for Generators and Motors.
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• Real World Application

Learn how to create electricity without a battery.
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