In physics, power is the amount of energy per unit of time transmitted or transformed. The unit of power in the International System of Units is watts, equivalent to one joule per second. Control is often referred to as intervention in older works. Power derives from the word potere in Latin, meaning “to be able.”
The formula for power is
P = W/Δt
Power is a calculation of the amount of work in a given amount of time that can be completed. Power equals task (J) separated by time (s). The power SI unit is the watt (W), which is equal to 1 joule per second (J/s) of operation. In a unit called horsepower, electricity may be measured.