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  1. In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar quantity.

  2. Power is the rate of energy transfer or work done. Learn how to measure power in watts and horsepower, and how to calculate instantaneous, average and peak power.

  3. Power is the rate at which work is done. It is the work/time ratio. Mathematically, it is computed using the following equation. Power = Work / time. or. P = W / t. The standard metric unit of power is the Watt. As is implied by the equation for power, a unit of power is equivalent to a unit of work divided by a unit of time.

  4. Power is the rate of doing work or transferring or transforming energy. Learn how to calculate power, what units are used, and how power relates to machines and animals.

  5. Power is the time rate of doing work or delivering energy, measured in units such as watts or horsepower. Learn how power is related to force, speed, torque, and angular speed, and how it differs from public utility.

  6. Power is the rate at which work is done or energy is transferred or transformed. Learn how to calculate power, average power and instantaneous power with examples and formulas from Khan Academy.

  7. Power is the rate at which work is done, or in equation form, for the average power \ (P\) for work \ (W\) done over a time \ (t\), \ (P = W/t\). The SI unit for power is the watt (W), where \ (1 \space W ….