9th Class Science Work and energy Question Bank 9th CBSE Science Work and energy

  • question_answer
      What is energy?

    Answer:

                      The capacity of a body to do work is called energy possessed by the body. It is a scalar quantity and is measured in joule (J). Generally, for practical purposes, a bigger unit called kilo joule (kJ) is used (1kJ=1000J).


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