Class 11 Physics: Gravitation Online Test | Exam Style Test

Class 11 Physics — Chapter 8: Gravitation Online Test

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Class 11 Physics: Gravitation Online Test (Paper 1)

Welcome to Paper 1! This is your foundation to build confidence and get you ready to tackle the challenges ahead.

  • Total Questions: 20
  • Time Allotted: 30 minutes
  • Passing Score: 40%
  • Randomization: No
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

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1 / 20

1. The gravitational self-energy of a uniform sphere of density and radius is:

2 / 20

2. If Earth’s radius is , what is the orbital radius of a geostationary satellite?

3 / 20

3. Why is gravitational potential always negative?

4 / 20

4. Inside a spherical shell of uniform mass distribution, the gravitational field is:

5 / 20

5. How does weightlessness assist in medical research in space?

6 / 20

6. When will a passenger in a lift feel weightless?

7 / 20

7. Which communication benefit is specific to geostationary satellites compared to low Earth orbit satellites?

8 / 20

8. What is the total mechanical energy of a satellite in terms of its potential energy ?

9 / 20

9. If the gravitational constant were larger, how would it affect the potential energy of a satellite?

10 / 20

10. What is the expression for the kinetic energy of a satellite in circular orbit of radius ?

11 / 20

11. Which force is responsible for holding galaxies together?

12 / 20

12. If the semi-major axis of a planet’s orbit is doubled, its orbital period will:

13 / 20

13. Which mathematical relation combines Newton’s Law of Gravitation with Kepler’s Third Law?

14 / 20

14. Which application of Kepler’s laws helps in predicting eclipses and transits?

15 / 20

15. In the formula , what does represent?

16 / 20

16. Why is the inverse-square law form essential in the gravitational formula?

17 / 20

17. Why is called “universal”?

18 / 20

18. Why is called a universal constant?

19 / 20

19. What is the gravitational constant commonly known as?

20 / 20

20. Why was Cavendish’s experiment considered groundbreaking?

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Class 11 Physics: Gravitation Online Test (Paper 2)

Welcome to Paper 2! You’ve mastered the basics, and now it’s time to test your understanding with a more challenging set of questions.

Get new questions on each attempt

  • Total Questions: 30
  • Time Allotted: 45 minutes
  • Passing Score: 50%
  • Randomization: Yes
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. If the gravitational constant were larger, how would it affect the potential energy of a satellite?

2 / 30

2. Why does a satellite in low Earth orbit still experience nearly the same gravitational acceleration as on Earth’s surface?

3 / 30

3. If a star loses thermal pressure and collapses under gravity, the role of gravitational self-energy is:

4 / 30

4. Which expression is used to calculate the escape speed from the surface of a planet of mass and radius ?

5 / 30

5. Which is the correct statement of the Law of Universal Gravitation?

6 / 30

6. What is the altitude of a geostationary satellite approximately?

7 / 30

7. What is the defining characteristic of a polar satellite?

8 / 30

8. Which Indian satellite series is primarily used for communication?

9 / 30

9. What is the main limitation of using a simple pendulum for measuring ?

10 / 30

10. If the radius of a planet shrinks to half while keeping the mass constant, how does its gravitational self-energy change?

11 / 30

11. Which of the following is NOT an advantage of geostationary satellites?

12 / 30

12. Which equation correctly gives escape speed from the surface of a planet?

13 / 30

13. Which of the following planets experiences the greatest variation in orbital speed due to Kepler’s Second Law?

14 / 30

14. The gravitational pull of the Moon is mainly responsible for:

15 / 30

15. Who first measured the value of the gravitational constant ?

16 / 30

16. If a satellite of mass 1000 kg is shifted from orbit to , the required energy is proportional to:

17 / 30

17. For a uniform sphere, which integral correctly represents gravitational self-energy?

18 / 30

18. Why is gravitational potential always negative?

19 / 30

19. Which physical quantity does NOT affect gravitational force between two bodies?

20 / 30

20. What is the formula for the orbital period of a planet around the Sun using ?

21 / 30

21. Which physical principle allows the use of free-fall experiments to calculate ?

22 / 30

22. For a uniform sphere of radius , the work done to bring a thin spherical shell of mass from infinity to radius is proportional to:

23 / 30

23. Which of the following is the primary use of communication satellites?

24 / 30

24. What is the expression for total energy of a satellite in circular orbit of radius ?

25 / 30

25. In Newton’s law, why is called the “scaling factor”?

26 / 30

26. What is the SI unit of ?

27 / 30

27. If the radius of Earth increases while its mass remains the same, what happens to ?

28 / 30

28. What is the total energy of a satellite in circular orbit?

29 / 30

29. What happens to the kinetic energy of a satellite when it is moved to a higher orbit?

30 / 30

30. The path of a satellite around Earth is determined by:

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Class 11 Physics: Gravitation Online Test (Paper 3)

Welcome to Paper 3! You’ve warmed up—now it's time to step up your game and conquer the challenge with tougher questions!

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  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 50

1. How does depth inside Earth affect ?

2 / 50

2. Why are polar satellites often used in Earth observation missions?

3 / 50

3. Why can a skydiver experience near weightlessness during free fall?

4 / 50

4. Why is gravitational potential energy negative in the formula ?

5 / 50

5. What does a more negative gravitational potential energy indicate about the system of two masses?

6 / 50

6. Which plane must a geostationary satellite orbit in?

7 / 50

7. Which of the following is an artificial satellite?

8 / 50

8. If altitude of a satellite increases, its orbital period:

9 / 50

9. What is the SI unit of gravitational potential energy?

10 / 50

10. Why does a diver jumping off a high diving board feel weightless momentarily?

11 / 50

11. Which of the following planets has the most eccentric orbit in our solar system?

12 / 50

12. What is the real cause of weightlessness in space travel?

13 / 50

13. Which formula shows how determines the gravitational field strength at the surface of a planet?

14 / 50

14. Kepler’s First Law of planetary motion states that:

15 / 50

15. Which law of Kepler can be applied to calculate the orbital period of a geostationary satellite?

16 / 50

16. Which equation relates to the universal gravitational constant ?

17 / 50

17. How does gravitation affect tides on Earth?

18 / 50

18. Which of the following is NOT influenced by gravitation?

19 / 50

19. How did Newton use universal gravitation to explain Kepler’s laws?

20 / 50

20. If a ball of mass falls from a height of , how much work is done by gravity? ()

21 / 50

21. Why do rockets require such high energy to leave Earth?

22 / 50

22. How many geostationary satellites can be placed in orbit around Earth?

23 / 50

23. The orbital velocity of a satellite at a distance from Earth’s center is:

24 / 50

24. The effective acceleration due to gravity at the equator is given by:

25 / 50

25. In Kepler’s Third Law, if is measured in years and in AU, then the proportionality constant for planets around the Sun is:

26 / 50

26. Why is the product important in the formula?

27 / 50

27. Which graph correctly represents variation of gravitational potential with distance from a point mass?

28 / 50

28. In elliptical orbits, how does the kinetic and potential energy of a satellite vary?

29 / 50

29. Why does a satellite in low Earth orbit still experience nearly the same gravitational acceleration as on Earth’s surface?

30 / 50

30. Why is the gravitational potential energy of an orbiting satellite negative?

31 / 50

31. Which of the following is a necessary condition for experiencing weightlessness?

32 / 50

32. Which of the following is an application of weightlessness in space exploration?

33 / 50

33. Kepler’s First Law can be theoretically derived using:

34 / 50

34. What is the definition of gravitational potential at a point?

35 / 50

35. The expression for the binding energy of a satellite of mass in circular orbit of radius around Earth of mass is:

36 / 50

36. A satellite is launched into a higher orbit. Which of the following increases?

37 / 50

37. At what depth below Earth’s surface will become half its surface value?

38 / 50

38. Polar satellites usually orbit at which altitude?

39 / 50

39. How is the gravitational potential energy between two masses expressed using ?

40 / 50

40. If the radius of a planet doubles while its mass remains constant, what happens to escape speed?

41 / 50

41. Which of the following was historically one of the first practical applications of Kepler’s laws?

42 / 50

42. The use of Kepler’s Third Law allowed astronomers to first determine the mass of which celestial body other than Earth?

43 / 50

43. How does gravitational self-energy scale with mass and radius ?

44 / 50

44. Why were Kepler’s laws considered incomplete before Newton?

45 / 50

45. At what approximate altitude does become half of its surface value? (Take ).

46 / 50

46. Which application of weightlessness is directly used in protein crystal growth research?

47 / 50

47. What is the SI unit of ?

48 / 50

48. What is the apparent weight of a person inside a freely falling elevator?

49 / 50

49. If escape speed from Earth is , what would it be for a planet with twice Earth’s radius and same mass?

50 / 50

50. Who first measured the value of the gravitational constant ?

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Practice Gravitation MCQs
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Class 11 Physics — Chapter 8: Gravitation Online Test

The Gravitation Online Test for Class 11 Physics helps you understand one of the most interesting yet conceptually challenging topics — the force that binds the universe together. Many students learn Newton’s Law of Gravitation but often face confusion when solving numerical problems on gravitational force, field, potential, and acceleration due to gravity. This chapter-wise online test is designed to remove that fear through focused MCQ practice and real exam-style questions based on the NCERT Class 11 Physics Chapter 8 — Gravitation.

This test series is suitable for CBSE Class 11 students as well as JEE / NEET aspirants who want to master concepts like universal law of gravitation, satellite motion, escape velocity, and variation of g. Each paper is auto-graded, time-bound, and gives instant feedback along with an answer review after submission. It’s not just about marks — it’s about developing clarity, logic, and accuracy while dealing with gravitational concepts.

Attempting these Gravitation MCQ online tests will help you improve conceptual understanding, accuracy, and time management skills. Every question is crafted from important topics like Kepler’s laws of planetary motion, gravitational potential energy, and acceleration due to gravity at different heights and depths. Once you start solving, you’ll realize how simple the concepts become when applied repeatedly.

About this Online Test

The Gravitation Chapter Test includes three papers that increase in difficulty and are designed for both concept-building and exam-level readiness:

  • Paper 1 — Foundation: 20 questions · 30 min · Pass ≥ 40%
  • Paper 2 — Mixed Level Practice: 30 questions · 45 min · Pass ≥ 50% · Random questions each attempt
  • Paper 3 — Advanced Challenge: 50 questions · 75 min · Pass ≥ 70% · Certificate on passing

Each test paper includes questions based on universal law of gravitation, mass and weight, gravitational potential energy, motion of satellites, escape velocity and more. Papers 2 and 3 shuffle new questions each time you attempt, giving you a fresh and dynamic practice experience.

Key Topics Covered (Gravitation)

  • Newton’s Law of Gravitation and its applications
  • Gravitational constant (G) and its measurement
  • Acceleration due to gravity (g) and its variation with height, depth, and latitude
  • Kepler’s laws of planetary motion
  • Gravitational field and potential
  • Escape velocity and orbital velocity
  • Motion of artificial satellites
  • Energy of satellite in circular orbit

How This Gravitation Test Helps You

Many students find numerical problems in Gravitation tricky due to formula confusion. This online test helps you overcome that by providing repeated exposure to problem patterns that actually appear in exams. It’s ideal for quick revision, concept checking, and confidence building before your school tests or JEE/NEET entrance exams.

  • Strengthens formula-based and conceptual problem solving
  • Provides step-by-step learning through three progressive papers
  • Shows instant results, percentage score, and correct answers
  • Free to access anytime without login or registration

Who Should Take This Test

  • Class 11 CBSE/NCERT students preparing for chapter-wise Physics exams
  • JEE and NEET aspirants targeting high-scoring Physics sections
  • Students wanting to revise gravitation formulas and concepts
  • Teachers who want ready-to-use timed chapter quizzes for their students

Preparation Tips for Chapter 8 — Gravitation

  • Revise Newton’s Law of Gravitation and understand how the force acts between any two masses.
  • Practice numerical problems on acceleration due to gravity (g) at height and depth.
  • Study Kepler’s laws carefully — they form the base for satellite motion.
  • Attempt Paper 1 for formula recall, Paper 2 for accuracy, and Paper 3 for full-speed practice.
  • Don’t rush — focus on understanding the concept behind every question.

Before You Start

  • Use latest Chrome or Edge browser for best experience.
  • Ensure stable internet connection during test.
  • Do not refresh or close tab while attempting the test.

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