Question

What is the correct definition of power?

a. Power is the rate at which work is done.
b. Power is the rate at which energy is used.
c. Power is the amount of work that is done.
d. Power is the product of force and distance.

Answer 1

Power is the rate at which work is done, represented as P = W/t, with power measured in watts (W), equivalent to joules per second (J/s).

Step-by-step explanation:

The correct definition of power is that it is the rate at which work is done. In equation form, this can be represented as P = W/t, where P stands for power, W for work done, and t for the time over which the work was done. Hence, the correct answer to the question is (a) Power is the rate at which work is done. Energy per time is another way to define power since work and energy have the same unit of measure, the joule. The SI unit for power is the watt (W), which equates to 1 joule per second (1 J/s).