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  3. 4th Class
  4. Science
  5. Force, Work and Energy

4th Class Science Force, Work and Energy Question Bank Force Work and Energy

  • question_answer
    When a pin wheel is placed against wind, it begins to spin. This proves that

    A)  moving air has energy

    B)  pin wheel has life

    C)  pin has energy

    D)  moving air has no energy.

    Correct Answer: A

    Solution :

    Moving air has energy. Since moving air can make a pin-wheel move, it has energy.


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