What is power - JSS2 Basic technology Power and Machines Question

Power is the rate at which work is done or energy is transferred over time. It measures how quickly energy can be converted or work can be performed. The SI unit of power is the Watt (W), where one Watt equals one Joule per second. Power is crucial in understanding how efficiently machines operate, as it indicates the speed of energy conversion or work completion. Higher power means more work done in a shorter time or faster energy transfer.