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

2 / 30

2. When vectors and are perpendicular, the geometric interpretation of their cross product is:

3 / 30

3. If two bodies collide on a rough horizontal surface with friction acting, the velocity of the COM:

4 / 30

4. Why does a person experience difficulty in running on a rotating merry-go-round platform?

5 / 30

5. For a uniform rectangular plate of length and breadth , the center of mass is located at:

6 / 30

6. On which factors does the moment of inertia of a rigid body depend?

7 / 30

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

8 / 30

8. For a particle of constant mass, the relationship between force and momentum is:

9 / 30

9. Which law relates torque to angular acceleration?

10 / 30

10. For a uniform thin rectangular plate, symmetry tells us the center of mass lies at:

11 / 30

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

12 / 30

12. What is the moment of inertia of a circular ring of mass and radius about a tangent in the plane of the ring?

13 / 30

13. The perpendicular axis theorem cannot be applied if:

14 / 30

14. If a disc has a moment of inertia of and is rotating with angular velocity , what is its angular momentum?

15 / 30

15. Two wheels of radii and are rotating at the same angular velocity. Which statement is correct?

16 / 30

16. Why do divers tuck their legs and arms while spinning?

17 / 30

17. What determines the stability of an object in equilibrium?

18 / 30

18. Which of the following is an example of torque in everyday life?

19 / 30

19. Why is Newton’s second law expressed as more general than ?

20 / 30

20. Moment of inertia of a uniform disc of mass and radius about a tangent in its plane is:

21 / 30

21. Which type of motion is shown by a rolling wheel on a flat road without slipping?

22 / 30

22. Why do engineers consider angular momentum in the design of turbines and rotors?

23 / 30

23. If a body is composed of multiple simple shapes, the total moment of inertia is calculated by:

24 / 30

24. If the angular velocity of a wheel is and its radius is , what is the linear velocity of a point on the rim?

25 / 30

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

26 / 30

26. Why is angular momentum conservation crucial in nuclear and particle physics?

27 / 30

27. Which of the following is true about angular momentum?

28 / 30

28. Why is it difficult to stop a spinning top suddenly?

29 / 30

29. If a force of 20 N is applied at a perpendicular distance of 0.5 m from the axis of rotation, what is the torque?

30 / 30

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

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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!

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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 is an everyday example of conservation of linear momentum?

2 / 50

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

3 / 50

3. Why is Newton’s second law expressed as more general than ?

4 / 50

4. If friction is suddenly removed while a body is rolling on a horizontal surface, it will:

5 / 50

5. Which force ensures rolling motion without slipping on a horizontal surface?

6 / 50

6. Which type of friction is responsible for maintaining rolling without slipping?

7 / 50

7. What is the moment of inertia of a thin uniform rod of length and mass , about an axis passing through its center and perpendicular to its length?

8 / 50

8. Why is the concept of a system of particles important in physics?

9 / 50

9. In elastic collisions, how does the motion of the center of mass compare before and after the collision?

10 / 50

10. Which of the following conditions results in zero torque?

11 / 50

11. Which application of rotational motion helps rockets and missiles stay on course?

12 / 50

12. Which of the following pairs is correct for SI units?

13 / 50

13. If two bodies collide on a rough horizontal surface with friction acting, the velocity of the COM:

14 / 50

14. An ice skater spins faster when she pulls in her arms. This is due to:

15 / 50

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

16 / 50

16. Which of the following is an example of a system of particles?

17 / 50

17. Which real-life example demonstrates conservation of angular momentum in space?

18 / 50

18. The parallel axis theorem is used to calculate the moment of inertia of a body:

19 / 50

19. Why is it important to study rotational motion separately from translational motion?

20 / 50

20. The center of mass of a uniform rectangular plate lies at:

21 / 50

21. Which of the following correctly relates angular velocity in rpm to rad/s?

22 / 50

22. A force of 10 N is applied at a point located 0.2 m from the pivot at an angle of 0°. What is the torque?

23 / 50

23. When two objects collide and stick together (perfectly inelastic collision), the center of mass of the system:

24 / 50

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

25 / 50

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

26 / 50

26. The term in the parallel axis theorem represents:

27 / 50

27. If a force acts at a position vector , the torque is given by:

28 / 50

28. What is the moment of inertia of a uniform solid sphere of mass and radius about its diameter?

29 / 50

29. In rolling motion, the acceleration of the center of mass is related to angular acceleration by:

30 / 50

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

31 / 50

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

32 / 50

32. Why are wheels preferred in vehicles instead of sliding blocks?

33 / 50

33. Which energy distribution makes a body accelerate faster down an incline?

34 / 50

34. For a uniform solid hemisphere of radius , the center of mass lies:

35 / 50

35. Why is it harder to rotate a heavy door than a light door when the same torque is applied?

36 / 50

36. On which factors does the moment of inertia of a rigid body depend?

37 / 50

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

38 / 50

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

39 / 50

39. A child applies a force of 40 N on a swing seat located 2 m from the pivot. The force is applied perpendicularly. What is the torque?

40 / 50

40. Which condition must be satisfied for a body to remain in stable equilibrium?

41 / 50

41. What ensures the smooth rolling of railway train wheels on tracks?

42 / 50

42. When vectors and are perpendicular, the geometric interpretation of their cross product is:

43 / 50

43. When vectors and are parallel, the geometric interpretation of is:

44 / 50

44. A cylinder rolling on its curved surface is in:

45 / 50

45. For a uniform rod placed horizontally, which symmetry ensures the center of mass lies at the midpoint?

46 / 50

46. Which principle of rotational motion explains why spinning satellites remain stable in space?

47 / 50

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

48 / 50

48. If the net external force on a system of particles is zero, what will be the motion of its center of mass?

49 / 50

49. If a force of 20 N is applied at a perpendicular distance of 0.5 m from the axis of rotation, what is the torque?

50 / 50

50. If a solid sphere of mass and radius is considered as made of thin discs, then its moment of inertia about a diameter is obtained by:

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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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