The rate at which energy is transferred is called power.
Power is defined as the amount of energy transferred or converted per unit of time. It is an important concept in various fields, including physics and engineering, as it helps us understand how quickly work can be done or energy can be used. The standard unit of power in the International System of Units (SI) is the watt (W), which is equivalent to one joule per second. In everyday life, we often encounter power in relation to electrical devices, where the power rating indicates how much energy the device consumes over time.