9th Class Science Time and Motion Question Bank 9th CBSE Science Motion

  • question_answer
      Give an example of indirectly perceivable motion.

    Answer:

                      We cannot see the air moving, but at the same time we can perceive the motion of air directly by observing the movement of dust, leaves and branches of trees, or simply by feeling the blowing air on our face, hands, etc. (2)


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