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3rd Class Science Lights, Sound and Force Question Bank Light Sound and Force

  • question_answer
    Four boys rolled oil drums of the same weight and size up the ramps of different heights as shown here. Which one of them put the most effort?

    A)   

    B)         

    C)         

    D)         

    Correct Answer: A

    Solution :

    The more the height of the ramp, the more is the effort required to roll up an oil drum.


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