Energize Your Engineering! Ace the ABSA 4th Class Power Engineer Exam – Part A 2025!

The rate of doing work is defined as power. In physics, power quantifies how quickly work is done or the amount of energy transferred or converted per unit of time. It indicates how efficiently energy is being used in a system.

For instance, if you perform a task that requires you to exert energy over a certain period, the power output would reflect how much work is accomplished in that time frame. Power is commonly measured in watts, where one watt corresponds to one joule of work done per second.

In contrast, the other options represent specific forms of energy rather than a measure of work over time. Kinetic energy refers to the energy possessed by an object due to its motion, while potential energy is related to the position or configuration of an object within a gravitational field or other force fields. The term "any energy" lacks a specific definition and does not pertain to the context of work performed over time.