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# Power

## Explore power as work over time

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Power

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Power is a measure of how much work can be done in a certain amount of time.

The standard unit for power is the Watt. Based on the above definition for power, can you identify what a Watt is equivalent to?

Describe how you can calculate power given work and time. How can you calculate work or time if you are given power?

Have you ever heard of the term "horsepower" being used to describe how powerful a car is? Horsepower is often used as a measure for power and is a measure of the amount of work that a horse can do in one minute. A horsepower is equal to 745 Watts.