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8th Class Science Friction Question Bank Friction

  • question_answer
    Sudhakar's bicycle was making a lot of squeaking noise. What should he do to stop the squeaking noise?

    A)  Water                 

    B)                         Oil         

    C)                         Sand                                    

    D)                         Powder 

    Correct Answer: B

    Solution :

    Sound is produced due to increased frictional force between the two surfaces. Oil is used as a lubricant to reduce frictional force in machines.


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