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

  • question_answer
      Hemlata had a bad experience during the take off of the plane when she boarded it for the first time. Her friend assisted and helped her during the landing of plane. She told her to fasten the seat belt and involved her in gossip. Hemlata faced less problems while landing of the plane. Read the above passage and answer the following questions (i) Why do we tie our seat belts in moving cars or landing/ takeoff of the plane? (ii) What is free fall? (iii) What value of Hemlata's friend is seen in this act?                     

    Answer:

                               (i) We tie our seat belts to remain intact on the seat so that our body does not fall forward.                                                                         (1) (ii) When an object falls towards the earth under the gravitational force then we say that the object is in free fall.                                (1)     (iii) Hemlata's friend showed the value of concerned, sympathetic and responsible, caring friend.                                            (1)  


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