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

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1 / 30

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

2 / 30

2. In which of the following situations will a person experience weightlessness?

3 / 30

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

4 / 30

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

5 / 30

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

6 / 30

6. Which of the following uses the concept of variation of with latitude?

7 / 30

7. What does the symbol stand for in the equation?

8 / 30

8. Which force is responsible for keeping a satellite in its orbit around Earth?

9 / 30

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

10 / 30

10. The Second Law implies that the force acting on a planet is:

11 / 30

11. Which formula gives the value of acceleration due to gravity at a height above Earth’s surface?

12 / 30

12. Why are polar satellites effective in disaster management?

13 / 30

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

14 / 30

14. Why do geologists study the variation of across different latitudes?

15 / 30

15. Which condition must be satisfied for a satellite to escape Earth’s gravitational field completely?

16 / 30

16. Why does decrease linearly with depth?

17 / 30

17. Why do all bodies fall at the same rate in the absence of air resistance?

18 / 30

18. Gravitational self-energy of Earth is about:

19 / 30

19. Which satellite application is most useful in predicting cyclones and hurricanes?

20 / 30

20. Which of the following correctly represents escape velocity from Earth’s surface?

21 / 30

21. Escape speed is derived using which principle?

22 / 30

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

23 / 30

23. How does gravitation affect tides on Earth?

24 / 30

24. Kepler’s laws, when derived from Newton’s theory, assume which type of central force?

25 / 30

25. Which apparatus did Cavendish use to measure ?

26 / 30

26. What distinguishes artificial satellites from natural satellites?

27 / 30

27. The ratio of kinetic energy to gravitational potential energy of a satellite in orbit is:

28 / 30

28. For a star of density and radius , binding energy is proportional to:

29 / 30

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

30 / 30

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

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

2 / 50

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

3 / 50

3. The application of Kepler’s laws is crucial in which modern field?

4 / 50

4. Which application of universal gravitation allows us to calculate the mass of distant planets?

5 / 50

5. Why do all bodies fall at the same rate in the absence of air resistance?

6 / 50

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

7 / 50

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

8 / 50

8. At Earth’s center, what is the value of ?

9 / 50

9. How does variation of affect aviation and space travel?

10 / 50

10. Kepler’s Second Law can be derived from which principle of physics?

11 / 50

11. Why is called a universal constant?

12 / 50

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

13 / 50

13. The main difference in application between geostationary and polar satellites is:

14 / 50

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

15 / 50

15. In which of the following situations will a person experience weightlessness?

16 / 50

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

17 / 50

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

18 / 50

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

19 / 50

19. Why are polar satellites suitable for environmental studies?

20 / 50

20. Which of the following uses the concept of variation of with latitude?

21 / 50

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

22 / 50

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

23 / 50

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

24 / 50

24. What is the order of magnitude of the gravitational force Cavendish measured between the lead spheres?

25 / 50

25. Which equation shows how is used to calculate the escape velocity of a satellite from Mars (mass , radius )?

26 / 50

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

27 / 50

27. What is the relation between conservation of energy and escape velocity?

28 / 50

28. A polar orbit has an inclination of approximately:

29 / 50

29. Which expression represents the gravitational field due to a point mass at a distance ?

30 / 50

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

31 / 50

31. Which equation explains why objects inside an orbiting satellite experience weightlessness?

32 / 50

32. If an object is projected with velocity less than escape speed, what will be its total mechanical energy?

33 / 50

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

34 / 50

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

35 / 50

35. Why are space telescopes placed in orbit where weightlessness prevails?

36 / 50

36. What is the value of gravitational force between two 1 kg masses separated by 1 meter?

37 / 50

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

38 / 50

38. Which physical principle is used to derive the variation of with depth?

39 / 50

39. Why is gravitational potential energy taken as negative for two masses at a finite separation?

40 / 50

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

41 / 50

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

42 / 50

42. Which of the following correctly represents escape velocity from Earth’s surface?

43 / 50

43. If the inclination of a satellite is not zero, the satellite will:

44 / 50

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

45 / 50

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

46 / 50

46. Which apparatus did Cavendish use to measure ?

47 / 50

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

48 / 50

48. At depth , what is the value of ?

49 / 50

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

50 / 50

50. Why do satellites not fall back to Earth despite the gravitational pull?

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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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