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power
Definition
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.
How can the word be used?
The power of the sun is harnessed to generate electricity.
Different forms of the word
Noun: the ability to do something or to make something happen.
Verb: to have power over someone or something.
Adjective: having power or strength.
Etymology
The word "power" comes from the Old English word "pÅweor", which means "ability". The word "power" has been used in English since the 9th century.
Question
What is power?