Power is the rate at which work is done. It is measured in watts, which is a unit of energy per time. For example, a light bulb that uses 100 watts of power is doing 100 joules of work every second.
Power can be used to do many different things, such as light a bulb, run a motor, or heat a room. The more power an object has, the faster it can do work.
The power of the sun is harnessed to generate electricity.
Noun: the ability to do something or to make something happen.
Verb: to have power over someone or something.
Adjective: having power or strength.
The word "power" comes from the Old English word "pōweor", which means "ability". The word "power" has been used in English since the 9th century.
What is power?
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