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ZingPath: Energy, Work, and Power

Calculating Power

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Energy, Work, and Power

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Lesson Focus

Calculating Power

Physics

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You get to explore the concepts of work and power. Investigate the work-energy theorem and learn how to solve problems.

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Now You Know

After completing this tutorial, you will be able to complete the following:

  • Calculate the power generated within a physical system.

Everything You'll Have Covered

What is work?

~ Work is force through a distance, therefore work = force x displacement.

What is power?

~ Power is the amount of work done per unit time.

What units of measurement are used to gauge work and power?

~ Work is measured in units called joules. Power is measured in units called watts.

If an elevator does 1,000 joules of work in 5 seconds, how many watts of power are produced?

~ If an elevator does 1,000 joules of work in 5 seconds, 200 watts of power are produced.

Tutorial Details

Approximate Time 2 Minutes
Pre-requisite Concepts Students should be familiar with the terms displacement, elevator, and energy change.
Course Physics
Type of Tutorial Animation
Key Vocabulary displacement, elevator, energy change