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  3. 8th Class
  4. Science

8th Class Science Sample Paper Science Sample Paper-1

  • question_answer
    Name two methods of reducing friction with examples.                                                                                

    Answer:

    (i) Rolling: The rolling wheels attached to luggage bags make it comfortable for passengers to carry them because rolling reduces friction and is smaller than sliding friction.                                                                 
    (ii) Sliding: By polishing surfaces or by applying a lubricant.


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