System Of Particles And Rotational Motion Online Test | Exam

Class 11 Physics — Chapter 7: System of Particles and Rotational Motion Online Test

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Class 11 Physics: System of Particles and Rotational Motion 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. Which energy distribution makes a body accelerate faster down an incline?

2 / 20

2. Which of the following is an application of rolling motion in daily life?

3 / 20

3. In rolling without slipping, the fraction of total energy in rotational form for a solid cylinder is:

4 / 20

4. For a body rolling without slipping, the condition linking linear acceleration and angular acceleration is:

5 / 20

5. A wheel of radius 0.5 m rolls without slipping with angular speed . What is the speed of its center of mass?

6 / 20

6. The phenomenon of accretion disks around black holes is strongly influenced by:

7 / 20

7. Which law connects torque and angular momentum?

8 / 20

8. If the torque acting on a body is constant, the work done by the torque after an angular displacement is:

9 / 20

9. If the torque acting on a wheel is zero, what will be the angular acceleration of the wheel?

10 / 20

10. Using parallel axis theorem, what is the moment of inertia of a disc of mass and radius about an axis tangent to the disc and lying in its plane?

11 / 20

11. Which of the following steps is important in the proof of the perpendicular axis theorem?

12 / 20

12. Which of the following steps is essential in the proof of the parallel axis theorem?

13 / 20

13. For a rectangular lamina of length and breadth , the perpendicular axis theorem can be applied to relate:

14 / 20

14. Moment of inertia of a thin rectangular plate of length , breadth , and mass about an axis through its center and perpendicular to its plane is:

15 / 20

15. What is the SI unit of moment of inertia?

16 / 20

16. What does the moment of inertia of a body represent?

17 / 20

17. Why are loaded ships designed with ballast at the bottom?

18 / 20

18. If a uniform rod is balanced horizontally on a knife edge at its midpoint, it is in:

19 / 20

19. A planet revolving around the sun in an elliptical orbit conserves:

20 / 20

20. Which equation correctly relates angular velocity , linear velocity , and radius of circular motion?

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Class 11 Physics: System of Particles and Rotational Motion 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. Which real-life example demonstrates conservation of angular momentum in space?

2 / 30

2. Which of the following best represents the physical significance of angular momentum?

3 / 30

3. Which physical quantity is always measured with respect to the center of mass in mechanics?

4 / 30

4. What is the moment of inertia of a hollow spherical shell of mass and radius about a diameter?

5 / 30

5. If the angle between force and position vector is 90°, then torque is:

6 / 30

6. For a two-particle system of masses and with velocities and , the velocity of the center of mass is:

7 / 30

7. If a rigid body is suspended freely in a uniform gravitational field, it will come to rest in which position?

8 / 30

8. If two equal masses collide elastically in one dimension, the center of mass:

9 / 30

9. Which principle of rotational motion is used in the working of a flywheel in engines?

10 / 30

10. The moment of inertia of a thin uniform rod of length and mass , about an axis along its length (longitudinal axis), is:

11 / 30

11. Which principle explains why a spinning skater speeds up when pulling in their arms?

12 / 30

12. Why does a bicycle remain more stable when moving fast compared to when stationary?

13 / 30

13. A force of 25 N is applied at 45° to a lever arm of 0.5 m. What is the torque?

14 / 30

14. For a body of moment of inertia , what happens to angular momentum if the axis of rotation changes?

15 / 30

15. The angular momentum of a particle of mass with position vector and velocity is:

16 / 30

16. What is the primary difference in energy expression for translational and rotational motion?

17 / 30

17. Which law governs the motion of the center of mass of a system under external forces?

18 / 30

18. If a system of particles is rotated about its center of mass, what is the effect on its motion?

19 / 30

19. If no external force acts on a system of particles, the velocity of the center of mass will:

20 / 30

20. The acceleration of the center of mass of a rolling cylinder on an inclined plane of angle is:

21 / 30

21. Which of the following is NOT an example of vector product in physics?

22 / 30

22. The perpendicular axis theorem is particularly useful in finding the moment of inertia of:

23 / 30

23. The work done by the magnetic force on a charged particle is always:

24 / 30

24. For a rolling sphere, the point of contact with the ground has what velocity relative to the ground?

25 / 30

25. Which of the following best defines torque?

26 / 30

26. Why is angular momentum considered a vector quantity?

27 / 30

27. If a spacecraft ejects gas in one direction, what happens to the spacecraft’s center of mass motion?

28 / 30

28. In a uniform cube, the center of mass is located:

29 / 30

29. If a bomb projected in air explodes into fragments, the path of the center of mass of all fragments will:

30 / 30

30. Why are double-decker buses made with a heavier lower section?

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Class 11 Physics: System of Particles and Rotational Motion 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!

Earn a certificate upon passing

Get new questions with every attempt

  • 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 of the following devices uses torque for its operation?

2 / 50

2. Which of the following best represents the physical significance of angular momentum?

3 / 50

3. In elastic collisions, conservation of linear momentum holds true because:

4 / 50

4. What is the SI unit of moment of inertia?

5 / 50

5. A solid sphere and a hollow sphere of equal mass and radius roll down the same incline. Which has greater rotational KE at the bottom?

6 / 50

6. Two objects collide inelastically on a frictionless surface. What happens to their total kinetic energy?

7 / 50

7. A force of 15 N is applied perpendicular to a wrench at a distance of 0.4 m from the nut. What is the torque produced?

8 / 50

8. Which quantity in rotational motion is analogous to force in linear motion?

9 / 50

9. Which law or principle does the perpendicular axis theorem resemble in mathematical form?

10 / 50

10. Which statement is correct about energy considerations in rolling motion?

11 / 50

11. A seesaw with two children of equal mass sitting at equal distances from the fulcrum is in equilibrium because:

12 / 50

12. Which of the following is an example of stable equilibrium in everyday life?

13 / 50

13. A planet revolving around the sun in an elliptical orbit conserves:

14 / 50

14. If a wheel has a moment of inertia of and is subjected to a torque of , its angular acceleration is:

15 / 50

15. Which example illustrates the conservation of angular momentum in space?

16 / 50

16. Which type of equilibrium is shown by a ball resting on a flat horizontal surface?

17 / 50

17. The vector product of two vectors and is defined as:

18 / 50

18. The parallel axis theorem is useful for calculating:

19 / 50

19. Why do heavy trucks use more tires?

20 / 50

20. Which of the following is an application of rolling motion in sports?

21 / 50

21. Why is torque considered the rotational analogue of force?

22 / 50

22. Which physical law is common to both linear and rotational dynamics?

23 / 50

23. When a system of particles is placed in a uniform gravitational field, the motion of the COM is equivalent to:

24 / 50

24. According to Newton’s second law, force is related to momentum as:

25 / 50

25. What is the radius of gyration of a body?

26 / 50

26. What is the SI unit of angular velocity?

27 / 50

27. Which law of mechanics directly applies to both translational and rotational motion?

28 / 50

28. The stability of artificial satellites in orbit is maintained using which principle?

29 / 50

29. If two ice skaters push off each other on frictionless ice, the center of mass of the system will:

30 / 50

30. The geometric meaning of the magnitude of is equivalent to:

31 / 50

31. Why is angular momentum important in analyzing rotational systems?

32 / 50

32. Which quantity in rotational motion is analogous to displacement in linear motion when calculating work?

33 / 50

33. Why does a cone placed on its tip topple easily?

34 / 50

34. In a uniform gravitational field, the potential energy of a system of particles is:

35 / 50

35. For a uniform circular disc of radius , the center of mass is located at:

36 / 50

36. What is the moment of inertia of a thin uniform circular ring of mass and radius about its central diameter?

37 / 50

37. A bomb explodes into three fragments in space where no external force acts. The vector sum of momenta of all fragments is:

38 / 50

38. What is the moment of inertia of a uniform circular disc of mass and radius about an axis perpendicular to the plane and passing through its center?

39 / 50

39. A uniform disc of mass and radius has its moment of inertia about a diameter equal to:

40 / 50

40. The impulse imparted to a body is equal to:

41 / 50

41. In which of the following devices does rolling motion play a crucial role in reducing wear and tear?

42 / 50

42. Moment of inertia of a uniform disc of radius and mass about an axis through its center and perpendicular to its plane is:

43 / 50

43. Which factor makes rolling motion of car tires more energy efficient?

44 / 50

44. In a uniform cube, the center of mass is located:

45 / 50

45. According to the parallel axis theorem, if the moment of inertia of a body about an axis through its center of mass is , then the moment of inertia about a parallel axis at a distance is:

46 / 50

46. In which case is angular momentum NOT conserved?

47 / 50

47. The SI unit of torque is:

48 / 50

48. For a homogeneous sphere, the center of mass lies:

49 / 50

49. Which of the following analogies is correct?

50 / 50

50. Which equation correctly relates angular velocity , linear velocity , and radius of circular motion?

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Class 11 Physics — Chapter 7: System of Particles and Rotational Motion Online Test

The System of Particles and Rotational Motion Online Test has been designed especially for Class 11 students who often find this chapter tricky yet fascinating. Many students understand the formulas but struggle when it comes to applying them under exam pressure. This online test will help you bridge that gap through real-time MCQs that test not just memory, but understanding and accuracy.

You can attempt exam-style questions based on rotational dynamics, torque, angular momentum, and equilibrium of rigid bodies. Each paper gives you instant feedback, shows correct answers, and helps you identify your weak spots. It’s not just another test — it’s a step toward confidence and clarity in one of the most conceptual parts of Physics.

After finishing a few attempts, you’ll realize how every question strengthens your thinking process. Students who practice these papers regularly develop sharper reasoning and improved speed in problem-solving — both essential for board exams and competitive tests like JEE or NEET.

About this Online Test

The System of Particles and Rotational Motion online test includes three well-structured papers that gradually increase in difficulty. It’s meant to help you move from understanding to mastery with clear progress in each stage.

  • Paper 1 — Concept Starter: 20 questions · 30 min · Pass ≥ 40%
  • Paper 2 — Mixed Practice: 30 questions · 45 min · Pass ≥ 50% · New set each time
  • Paper 3 — Advanced Challenge: 50 questions · 75 min · Pass ≥ 70% · Certificate on pass

Papers 2 and 3 present fresh questions every time you attempt them, while Paper 1 stays fixed for conceptual warm-up. All papers are automatically checked, timed, and allow you to review each answer after submission.

Key Topics Covered (System of Particles and Rotational Motion)

  • Centre of Mass and motion of system of particles
  • Linear momentum and conservation laws
  • Torque and angular momentum
  • Moment of inertia and its physical significance
  • Rotational kinetic energy and work–energy theorem
  • Rolling motion and pure rolling condition
  • Parallel and perpendicular axis theorems
  • Numerical problems on rotational dynamics and energy

How the Test Works

Choose a paper, answer each MCQ within the given time, and submit to see your score. Every test helps you understand where you stand and what to improve next. It’s not about competition — it’s about progress and confidence building.

Highlights of the Test

  • Real exam-style timed environment
  • Instant scoring with full answer review
  • Randomized questions for better coverage
  • Free, mobile-friendly, and available 24×7
  • Certificate after clearing Paper 3 with 70% or more

Who Should Attempt This Test

  • Class 11 students preparing for school or competitive exams
  • JEE and NEET aspirants wanting speed and accuracy in rotational mechanics
  • Students who want to build confidence in Physics problem-solving
  • Teachers assigning chapter-wise online practice for revision

Why You Should Take This Test

  • Helps you understand how concepts work under time pressure
  • Gives immediate clarity on mistakes and correct reasoning
  • Improves speed in solving rotational and centre of mass questions
  • 100% free — no registration or payment needed
  • Builds the confidence needed for both exams and real understanding

Study Plan for Better Results

  • Read the chapter carefully from NCERT before your first attempt.
  • Attempt Paper 1 to test basic understanding and formula recall.
  • Analyze mistakes using the answer review and retry Paper 2.
  • Attempt Paper 3 under real exam conditions and aim for 70% or more.
  • Revise once again and retake after 48 hours to ensure strong retention.

Before You Start

  • Use Chrome or Edge for smooth experience.
  • Keep a stable internet connection.
  • Don’t refresh or close the tab while the test is running.

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