physics numericals for class 9 gravitation |gravitation class 9

Gravitation class 9 questions from |physics numerical for class 9 gravitation

Some one-word questions for class 9 gravitation.

  • If the moon attracts the Earth, why does the Earth not move towards the moon?
  • What is the importance of the universal law of gravitation?. 
  • What is the source of the centripetal force that a planet requires to revolve around the sun? On what factors does that force depend?
  • A body is projected upwards. What is its velocity at maximum height?.
  • A person weight 70kg on earth, where g=10 m/s2.What is his mass?.
  • The mass of a child is 20 kg. If g=9.8 m/s2. What is his weight?

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