9th Class Science Gravitation and Floatation Question Bank 9th CBSE Science Gravitation

  • question_answer
      Why will a sheet of paper fall slower than one that is crumpled into a ball?        [NCERT]

    Answer:

                                           Sheet crumpled into a ball has small surface area as compared to that of an unfolded sheet. Therefore, the unfolded sheet will experience more friction due to air as compared to the crumpled ball in spite of the same force of gravity acting upon them. The larger friction of air slows down the unfolded sheet so it will fall slower than the sheet crumpled into a ball.


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