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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. Power is a scalar quantity.
What is power? How is it related to work and energy? Learn about Work, Energy, and Power in a detailed way with the help of engaging video lessons at BYJU'S.
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The rate at which work is done is referred to as power. A task done quite quickly is described as having a relatively large power. The same task that is done more slowly is described as being of less power. Both tasks require he same amount of work but they have a different power.
In physics, power is defined as the rate at which work is done. In other words, it measures how quickly energy is being transferred or transformed. Explore the concept of power in physics through an example of two weightlifters, one who lifts faster than the other, to see that power measures the rate at which work is done.
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 ….
Power is the rate at which work is done (or energy is transferred). What is the unit of power? Watt is the unit of power!
In physics, power is the rate of doing work. It is the amount of energy consumed per unit time. The unit of power is the joule per second (J/s), known as the watt (in honor of James Watt, the eighteenth-century developer of the steam engine).
Definition: Power. Power is defined as the rate of doing work, or the limit of the average power for time intervals approaching zero, P = dW dt. If the power is constant over a time interval, the average power for that interval equals the instantaneous power, and the work done by the agent supplying the power is. W = PΔt.
Learn about and revise the rate of energy transfer, and calculating power and efficiency with GCSE Bitesize Physics.
