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.

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

Good luck! 👍

1 / 30

1. Which of the following best describes Earth’s orbit around the Sun?

2 / 30

2. The self-energy of a sphere of density , radius , is given by:

3 / 30

3. Who was the first scientist to propose the universal law of gravitation?

4 / 30

4. What is the SI unit of the gravitational constant ?

5 / 30

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

6 / 30

6. What role does gravitation play in the life cycle of stars?

7 / 30

7. Why is weightlessness advantageous in materials science experiments in orbit?

8 / 30

8. Which of the following best describes the orbital period of polar satellites?

9 / 30

9. What is the semi-major axis of an elliptical orbit?

10 / 30

10. How does connect with Einstein’s general theory of relativity?

11 / 30

11. What is the condition for experiencing true weightlessness inside a satellite?

12 / 30

12. How does Earth’s rotation affect the value of ?

13 / 30

13. What is one disadvantage of polar satellites compared to geostationary satellites?

14 / 30

14. If a planet’s orbit is elliptical, where does it move fastest?

15 / 30

15. Why is essential in determining the motion of artificial satellites?

16 / 30

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

17 / 30

17. What is the typical altitude range of a polar satellite?

18 / 30

18. Which of the following graphs correctly represents gravitational field inside and outside a uniform solid sphere?

19 / 30

19. Why does decrease linearly with depth inside Earth?

20 / 30

20. How does weightlessness help in biological experiments aboard the ISS?

21 / 30

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

22 / 30

22. What was India’s first artificial satellite?

23 / 30

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

24 / 30

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

25 / 30

25. If the total mechanical energy of a satellite becomes zero, what will happen?

26 / 30

26. Which astronomer’s precise observations of planetary motion allowed Kepler to formulate his laws?

27 / 30

27. Why is the escape speed from Mars lower than from Earth?

28 / 30

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

29 / 30

29. For a planet of radius and density , escape speed can be expressed as:

30 / 30

30. At what height above Earth’s surface will become of its surface value?

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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

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1 / 50

1. The kinetic energy of a satellite depends on:

2 / 50

2. Which of the following dimensional checks confirms the correctness of Newton’s gravitational formula?

3 / 50

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

4 / 50

4. At infinity, the gravitational potential energy of an object is taken as:

5 / 50

5. Which concept by Galileo was crucial for Newton’s first law of motion?

6 / 50

6. If a lift falls freely under gravity, passengers inside will experience:

7 / 50

7. If altitude , what approximate formula can be used for ?

8 / 50

8. Why does decrease linearly with depth?

9 / 50

9. At which location on Earth’s surface is the value of minimum?

10 / 50

10. Why do astronauts inside the International Space Station (ISS) feel weightless?

11 / 50

11. If the gravitational field at a point is , what does it mean?

12 / 50

12. What is one disadvantage of polar satellites compared to geostationary satellites?

13 / 50

13. Why is (square of the distance) used instead of just ?

14 / 50

14. The value of was first determined by:

15 / 50

15. How does gravitation affect tides on Earth?

16 / 50

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

17 / 50

17. What is the definition of the gravitational field at a point?

18 / 50

18. Why is the gravitational self-energy of a solid sphere negative?

19 / 50

19. Escape speed is derived by equating which two forms of energy?

20 / 50

20. What is the SI unit of the universal gravitational constant ?

21 / 50

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

22 / 50

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

23 / 50

23. Which principle is applied in deriving the expression for below Earth’s surface?

24 / 50

24. Which of the following is a practical example of weightlessness on Earth?

25 / 50

25. Which force provides the centripetal force for satellites orbiting Earth?

26 / 50

26. The binding energy of a star is numerically equal to:

27 / 50

27. If a satellite of mass is orbiting Earth of mass , its kinetic energy can be expressed as:

28 / 50

28. What role does gravitation play in the life cycle of stars?

29 / 50

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

30 / 50

30. Why are units and dimensions of important in physics?

31 / 50

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

32 / 50

32. Why do we use the term "point masses" in the derivation of the gravitational law?

33 / 50

33. Why does escape speed not depend on the direction of projection?

34 / 50

34. Which of the following scientific fields directly benefits from studying variation of ?

35 / 50

35. Which one of the following is a consequence of the universal law of gravitation?

36 / 50

36. If the radius of a planet is doubled but its mass remains the same, the new gravitational self-energy becomes:

37 / 50

37. The universal law of gravitation was first published in which work by Newton?

38 / 50

38. What is the physical meaning of the constant in the gravitational formula?

39 / 50

39. If the orbital radius of a satellite is increased, its orbital speed:

40 / 50

40. What role does play in the equation ?

41 / 50

41. How is total energy of a satellite related to its potential energy?

42 / 50

42. What physical meaning does gravitational self-energy have?

43 / 50

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

44 / 50

44. What is the defining characteristic of a geostationary satellite?

45 / 50

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

46 / 50

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

47 / 50

47. If the eccentricity of an orbit is close to 1, what does the orbit look like?

48 / 50

48. Which satellite has higher orbital velocity, geostationary or polar?

49 / 50

49. Two identical planets each of mass and radius merge to form one spherical planet of radius . Ratio of new self-energy to that of one original planet is:

50 / 50

50. If a satellite loses mechanical energy due to atmospheric drag, what will happen to its orbit?

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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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