Chapter 5 – Gravitation



–(Exercise: Questions Answers)–[Open]


–(Exercise: Numericals/Problems)–[Open]


–(Extra: MCQ’s)–[Open]


–(Extra: Short Questions)–[Open]


–(Extra: Long Questions)–[Open]


Section 1:  (Exercise: Questions Answers)

Section 2:  (Exercise: Numericals)

Section 3:  (Extra: MCQ’s)

Section 4:  (Extra: Short Questions)

  1. Define gravitation.         (LHR 2011, 2015, 2016, GRW 2015)
  2. State law of gravitation       (LHR 2013, 2014, GRW 2015)
  3. What is the relation between Law of Gravitation and Newton’s Third law of motion?
  4. What is Gravitational Field Strength?     (LHR 2013, 2015)
  5. Define orbital velocity (GRW 2012)
  6. What do you know about Global Positioning System (GPS)? (GRW 2014)
  7. What will happen if Earth suddenly stops revolving around the Sun?
  8. What do you know about geostationary satellites?  (LHR 2014)
  9. What is effect of the followings on the gravitational acceleration?
  10. Is there any difference between the value of ‘g’ at the equator and at the poles?
  11. Moon revolves around the earth, from where it gets necessary centripetal force?
  12. If we go on top of the mountain, will our weight increase or decrease?
  13. Why do not we observe force of attraction between any two objects around us? (GRW 2014)
  14. What is the gravitational force acting on the body placed at the surface of Earth?

Section 5:  (Extra: Long Questions)

  1. State and explain Newton’s law of gravitation. (GRW 2011, 12, 13, 15, LHR 2013)
  2. Explain the gravitational field? (GRW 2013)
  3. Determine the mass of the earth by using Newton’s law of gravitation. (GRW 2014, LHR 2015)
  4. Explain the variation of ‘g’ with altitude. (GRW 2015)
  5. What are artificial satellites? Define orbital velocities and what do you know about communication satellites? (LHR 2013)
  6. Explain the motion of an artificial satellite and derive the formula for orbital velocity of an artificial satellite. (LHR 2013, 2014, 2015, GRW 2014)

9th Class Notes Links:


This Post Has One Comment

  1. Tahir Mehmood

    Thanx a lot..Jazak Allah

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