9th Class Science Work and energy Question Bank Work, Energy and Power

  • question_answer
    Once a choice made regarding zero potential energy reference state, the changes in potential energy

    A)  are same  

    B)  are different

    C)  depend strictly on the choice of the zero potential                  

    D)  become in determine                  

    Correct Answer: A

    Solution :

     The change in height with respect to the reference of zero potential energy is also equal to height from the datum line of zero potential energy. Thus change in potential energy with respect to the line of zero potential energy is same as the potential energy of the object.


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