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Question

What is energy? State and define SI unit of energy?


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Solution

Definition of energy

  1. The capacity of a body to do work is called energy.
  2. The energy may exist in various forms like potential, kinetic, thermal, chemical, nuclear energy, etc.

Units

  1. The SI unit of energy is the same as that of work.
  2. SI unit of energy is Joule(J).

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