Question

what is meant by energy
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Answer 1

In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed. Mass and energy are closely related !

Answer 2

Explanation:

The strenth and vitality required for sustained physical or mental activity is called energy