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

  • question_answer
    A ball is thrown upwards from point\[A\]. It reaches up to point \[B\] and returns. What can be concluded?

    A)  Kinetic energy at \[A=\] kinetic energy at \[B\]

    B)  Potential energy at \[A=\] potential energy at\[B\]

    C)  Potential energy at \[B=\] kinetic energy at\[B\]

    D)  Potential energy at \[B=\] kinetic energy at \[A\]  

    Correct Answer: D

    Solution :

     From point\[A\], the body is thrown upwards and hence it acquires \[K.E.\] and when it reaches the maximum height at point\[B\], it acquires\[P.E.\]


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