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

2 / 30

2. For a rolling cylinder, what is the acceleration of the point of contact with the ground relative to the ground?

3 / 30

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

4 / 30

4. What is the SI unit of angular velocity?

5 / 30

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

6 / 30

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

7 / 30

7. If a wheel is rolling with slipping, which of the following statements is true?

8 / 30

8. What is the angular form of Newton’s second law for rotational motion about a fixed axis?

9 / 30

9. How is COM used in controlling robotic arms in manufacturing?

10 / 30

10. In a collision between two particles, what determines the motion of the center of mass of the system?

11 / 30

11. In rotational motion, angular momentum is related to torque by which expression?

12 / 30

12. If the mass of a particle remains constant, the relation simplifies to:

13 / 30

13. In a gun–bullet system, when the bullet is fired forward, the gun recoils backward. This demonstrates:

14 / 30

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

15 / 30

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

16 / 30

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

17 / 30

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

18 / 30

18. Which law ensures that the motion of the center of mass of a system is determined only by external forces?

19 / 30

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

20 / 30

20. What is the vector definition of angular momentum for a particle?

21 / 30

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

22 / 30

22. What condition must be true for the equation to hold?

23 / 30

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

24 / 30

24. If the radius of a rotating disc is doubled while keeping angular velocity constant, what happens to the linear velocity of a point on its rim?

25 / 30

25. Why does a rocket accelerate upward when gases are expelled downward?

26 / 30

26. Which of the following is the SI unit of angular momentum?

27 / 30

27. Which physical principle connects linear motion with rotational motion in Newton’s second law?

28 / 30

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

29 / 30

29. In translational motion, inertia is measured by mass. In rotational motion, inertia is measured by:

30 / 30

30. Why is angular momentum considered a vector quantity?

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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. When does the relation not hold true?

2 / 50

2. If a constant force acts on a body of mass for a time , the change in momentum is:

3 / 50

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

4 / 50

4. Which application of COM is most important in designing humanoid robots?

5 / 50

5. In a uniform gravitational field, the acceleration of the center of mass of a system of particles is:

6 / 50

6. Which type of friction is smaller:

7 / 50

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

8 / 50

8. Which of the following is a practical example of conservation of angular momentum?

9 / 50

9. The parallel axis theorem cannot be applied if:

10 / 50

10. Which of the following best defines angular momentum?

11 / 50

11. Why do astronauts use rotating chairs or platforms during training?

12 / 50

12. Why does a helicopter need a tail rotor?

13 / 50

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

14 / 50

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

15 / 50

15. The center of mass of a uniform solid cone of height lies:

16 / 50

16. Moment of inertia of a hollow cylinder of mass , inner radius , and outer radius about its central axis is:

17 / 50

17. Moment of inertia of a uniform solid cylinder of mass , radius , and length , about its central diameter is:

18 / 50

18. The dimension of angular velocity is:

19 / 50

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

20 / 50

20. Why is the concept of center of mass useful in analyzing the motion of complex bodies?

21 / 50

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

22 / 50

22. The SI unit of torque is:

23 / 50

23. Which of the following analogies is correct?

24 / 50

24. In the theorem , what does represent?

25 / 50

25. Which concept of rotational motion explains why a skater spins faster when arms are pulled inward?

26 / 50

26. Which quantity remains unchanged when internal forces act inside a system of particles?

27 / 50

27. Which factor determines the distribution of energy between translational and rotational motion in rolling?

28 / 50

28. Why is the concept of center of mass important in space missions?

29 / 50

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

30 / 50

30. The magnitude of the vector product represents:

31 / 50

31. Why is momentum conserved in all types of collisions, elastic or inelastic?

32 / 50

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

33 / 50

33. Which physical quantity represents the rate of change of linear momentum?

34 / 50

34. Which type of friction is responsible for initiating rolling motion of a body on a surface?

35 / 50

35. The expression for radius of gyration in terms of moment of inertia and mass is:

36 / 50

36. What is the moment of inertia of a solid cylinder of mass and radius about its central axis?

37 / 50

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

38 / 50

38. If two point masses of each are placed at distances of and from a given axis, the total moment of inertia is:

39 / 50

39. The geometric interpretation of vector product helps in finding:

40 / 50

40. Why is torque considered in the study of rotational motion?

41 / 50

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

42 / 50

42. The kinetic energy of a rotating rigid body can be expressed as:

43 / 50

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

44 / 50

44. In translational motion, how do all the particles of a rigid body move?

45 / 50

45. What is the mathematical relation between torque and angular acceleration for a rigid body?

46 / 50

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

47 / 50

47. 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?

48 / 50

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

49 / 50

49. When analyzing the equilibrium of bodies in a uniform gravitational field, which point is most convenient for calculations?

50 / 50

50. Which of the following quantities has the same dimensions as linear momentum?

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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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