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Question

Define the term energy of a body. What is its SI unit?


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Solution

  1. Energy can be defined as the ability to do work. The amount of energy possessed by a body is equal to the amount of work it do when its energy is released.
  2. Energy is a scalar quantity.
  3. The SI unit of energy is Joule.
  4. The energy required to do 1 joule of work is called 1-Joule energy.

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