Science glossary film: Power

Power

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The rate of doing work, or of converting energy.

The rate of doing work or of converting energy. If a given amount of work is performed in a shorter time, for example pushing a particular weight up a slope more quickly, then more power will be required to achieve this – though the amount of energy required is the same. Power is measured in SI units of watts, equivalent to joules per second.

If a given amount of work is performed in a shorter time, for example pushing a particular weight up a slope more quickly, then more power will be required to achieve this – though the amount of energy required is the same. Power is measured in SI units of watts, equivalent to joules per second.

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