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

Good luck! 👍

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. What is the gravitational potential at a distance from a point mass ?

2 / 30

2. How is measured in modern laboratories with high precision?

3 / 30

3. When an object is brought closer to Earth from infinity, the work done by gravity is:

4 / 30

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

5 / 30

5. When a body attains escape speed, its total energy becomes:

6 / 30

6. Which of the following is true about kinetic energy of an orbiting satellite?

7 / 30

7. Which of the following is a major application of geostationary satellites?

8 / 30

8. If on the surface, what is its value at a depth of (Earth’s radius )?

9 / 30

9. How is (acceleration due to gravity) related to ?

10 / 30

10. If Earth is approximated as a uniform solid sphere of mass and radius , the gravitational self-energy is closest to:

11 / 30

11. Which of the following is NOT a characteristic of polar satellites?

12 / 30

12. For a uniform density sphere, the gravitational potential at center is related to self-energy by:

13 / 30

13. Which of the following best describes the cause of weightlessness in satellites?

14 / 30

14. Which of the following forces is responsible for the energy exchange between kinetic and potential energy in elliptical orbits?

15 / 30

15. Which formula directly relates work done by gravitational force to potential energy?

16 / 30

16. Which experiment is commonly used to measure the value of near Earth’s surface?

17 / 30

17. If a satellite moves to twice its orbital radius, its potential energy becomes:

18 / 30

18. How does dimensional analysis of help in deriving related physical equations?

19 / 30

19. Which of the following constants has units most similar to ?

20 / 30

20. The energy required to transfer a satellite of mass from an orbit of radius to is:

21 / 30

21. Which factor contributes more significantly to the variation of with latitude?

22 / 30

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

23 / 30

23. Escape velocity condition comes from:

24 / 30

24. If a body of mass is lifted to a height , how much work is done against gravity?

25 / 30

25. If the orbital speed of a satellite close to Earth’s surface is about 7.9 km/s, what will be the escape speed from Earth?

26 / 30

26. Which satellite orbit is most useful for reconnaissance and surveillance purposes?

27 / 30

27. Who is often credited with “measuring the mass of the Earth” using the gravitational constant?

28 / 30

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

29 / 30

29. Why are geostationary satellites ideal for communication?

30 / 30

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

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

2 / 50

2. Derivation of Kepler’s First Law from Newton’s equations shows that orbital paths can be:

3 / 50

3. Which maneuver is commonly used to transfer satellites between two circular orbits using minimum energy?

4 / 50

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

5 / 50

5. Which of the following quantities remains constant in Kepler’s Second Law?

6 / 50

6. The total mechanical energy per unit mass of a satellite in circular orbit is:

7 / 50

7. Why does a satellite in circular orbit have constant kinetic and potential energy?

8 / 50

8. Why is gravitational potential energy defined as the negative of work done by gravity?

9 / 50

9. A planet has radius and density . Its gravitational self-energy is proportional to:

10 / 50

10. Which principle ensures that the total mechanical energy of a satellite in orbit remains constant?

11 / 50

11. For two satellites of different masses in the same orbit, their kinetic energies are:

12 / 50

12. If gravitational potential energy of Earth-satellite system is , how much energy is required to move the satellite to infinity?

13 / 50

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

14 / 50

14. Which satellite helps in Earth resource management such as agriculture and forestry?

15 / 50

15. The gravitational self-energy of a star of mass and radius (Sun approx.) is:

16 / 50

16. Geostationary satellites are widely used for:

17 / 50

17. Which equation involving is used to calculate the mass of Earth?

18 / 50

18. What advantage do geostationary satellites provide for communication systems?

19 / 50

19. Which of the following best defines gravitational potential energy (GPE)?

20 / 50

20. The weight of an object on the surface of Earth is an application of which law?

21 / 50

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

22 / 50

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

23 / 50

23. The energy required to transfer a satellite of mass from an orbit of radius to is:

24 / 50

24. Why is considered a link between terrestrial gravity and cosmic phenomena?

25 / 50

25. Which of the following is a direct observational consequence of Kepler’s Second Law?

26 / 50

26. If Earth stopped rotating, what would happen to the value of at the equator?

27 / 50

27. How is (acceleration due to gravity) related to ?

28 / 50

28. The perihelion of Earth occurs in:

29 / 50

29. How does potential energy of a satellite vary with orbital radius ?

30 / 50

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

31 / 50

31. Why do astronauts train in free-fall aircraft on Earth before going to space?

32 / 50

32. Why does Earth retain its atmosphere while the Moon does not?

33 / 50

33. How many geostationary satellites are typically required to cover the entire Earth’s surface (except polar regions)?

34 / 50

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

35 / 50

35. If the time period of a pendulum is measured as 2 seconds with a length of 1 m, what is the approximate value of ?

36 / 50

36. If the mass of a planet is increased by a factor of 3 and the radius is doubled, the self-energy changes by:

37 / 50

37. What is the main difference between geostationary and polar satellites?

38 / 50

38. If Earth’s mass is and radius is , calculate its gravitational self-energy.

39 / 50

39. What is the eccentricity of a perfectly circular orbit?

40 / 50

40. Which application of variation is used in mineral and oil exploration?

41 / 50

41. For an orbiting satellite, what does the negative sign of total energy indicate?

42 / 50

42. For Earth, the ratio has what numerical value (approximately)?

43 / 50

43. Which energy is constant for a satellite in circular orbit?

44 / 50

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

45 / 50

45. If Earth’s mass is and radius is , what is Earth’s escape speed? ()

46 / 50

46. If the total mechanical energy of a satellite is doubled (less negative), what happens to its orbit?

47 / 50

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

48 / 50

48. What happens to escape speed if potential energy is doubled (keeping radius constant)?

49 / 50

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

50 / 50

50. What is the expression for escape velocity of a body from Earth using ?

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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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