Physics

Power

Calculate the rate at which work is done.

Power = Work / Time

Formula Explanation

Power measures work done or energy transferred per unit time.

Variables Explained

Power = Watts; Work = Joules; Time = Seconds.

Solved Example

A machine performs 600 J of work in 10 seconds.
Power = 600 / 10 = 60 W.

Exam Tip

One watt equals one joule per second.