Power is time rate of doing work or of producing or expending energy. In other words, is a measure of how quickly work can be done. Power is often measured in watts or kilowatts.

Another way to look at power is as a unit of speed (m/s) combined with a unit of force (N). If you were pushing on something with a force of 1 N, and it moved at a speed of 1 m/s, your power output would be 1 watt.

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