Question

what is meant by energy????

Answer 1

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the strength and vitality required for sustained physical or mental activity.

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Answer 2

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Definition:
The strength and vitality required for sustained physical or mental activity.

Explanation:

• Energy can mean various things: Mostly it is used in science to describe how much potential a physical system has to change. In physics, energy is a property of matter and space, objects and fields. It can be transferred between objects and can also be converted in form.

•It is measure of the ability of a body or system to do work or produce a change, expressed usually in joules or kilowatt hours (kWh). No activity is possible without energy and its total amount in the universe is fixed. In other words, it cannot be created or destroyed but can only be changed from one type to another.

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