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 refers to the rate at which work is done or energy is transferred in a system. In electrical terms, power represents how quickly electrical energy is converted into other forms such as light or heat.
Related terms
Wattage: The unit used to measure power, symbolized by "W".
Energy Efficiency: A measure of how effectively electrical energy is converted into useful work.
Kilowatt-hour (kWh): A unit used to measure electrical energy consumption over time.