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8th Class Science Friction Question Bank Friction Formative Objective Problems

  • question_answer
    Ram and Shyam are pushing two identical boxes. Ram is pushing box I that is placed on a wheel cart, while Shyam is pushing box II that is placed on the ground. Both Ram and Shyam are trying to maintain a steady motion of the boxes. It is relatively difficult for Shyam to maintain a steady motion of box II because

    A)  Sliding friction is greater than rolling friction

    B)  Rolling friction is greater than sliding friction

    C)  Static friction is greater than sliding friction

    D)  Sliding friction is greater than static friction

    Correct Answer: A

    Solution :

      Sliding friction is always greater than rolling friction. Box II is sliding on the ground because of the force applied by Shyam. Box I is rolling on wheels because of the force applied by Ram. Hence, Shyam has to apply a greater force to maintain a steady motion of his box. The correct answer is A.


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