Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Power represents how quickly work is done or how fast energy is transferred. It is calculated by dividing the amount of work done by the time it takes to do that work.
Related terms
Energy Transfer: Energy transfer refers to the movement or conversion of energy from one object or system to another.
Efficiency: Efficiency measures how effectively a system converts input energy into useful output energy. It is calculated by dividing useful output energy by total input energy and multiplying by 100%.
Watt (W): Watt is the unit used to measure power. It represents one joule of work done per second.