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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. Why do astronauts in space stations feel weightless even though gravity acts on them?

2 / 30

2. For a two-particle system, the position of the center of mass is closer to:

3 / 30

3. What is the SI unit of angular velocity?

4 / 30

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

5 / 30

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

6 / 30

6. Which of the following best defines the moment of inertia?

7 / 30

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

8 / 30

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

9 / 30

9. The direction of angular momentum vector is given by:

10 / 30

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

11 / 30

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

12 / 30

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

13 / 30

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

14 / 30

14. Which type of equilibrium does a ball balanced on the top of a hill represent?

15 / 30

15. If a rolling body begins to slip, which of the following relationships no longer holds?

16 / 30

16. The center of mass of a uniform triangular lamina is located at:

17 / 30

17. Why are rollers used in textile industries?

18 / 30

18. In the absence of external torque, the angular momentum of a system:

19 / 30

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

20 / 30

20. Why do figure skaters extend their arms to slow down a spin?

21 / 30

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

22 / 30

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

23 / 30

23. A ball of mass moving with velocity strikes an identical stationary ball elastically. What is the velocity of the first ball after collision?

24 / 30

24. Why is angular momentum considered a vector quantity?

25 / 30

25. The work-energy theorem in rotational motion is a direct consequence of:

26 / 30

26. Why does a figure skater extend arms to slow down after spinning fast?

27 / 30

27. Which of the following best describes the motion of a point on the rim of a rolling wheel?

28 / 30

28. For a system of two particles of masses and located at and , the position of the center of mass is:

29 / 30

29. In rolling without slipping, the total kinetic energy of a body is:

30 / 30

30. A uniform rod of mass and length has a moment of inertia about its center . Using the parallel axis theorem, the moment of inertia about an end is:

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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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  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. The perpendicular axis theorem cannot be applied if:

2 / 30

2. A solid sphere of radius is rolling without slipping with angular velocity . The velocity of its center of mass is:

3 / 30

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

4 / 30

4. In robotics, why is knowledge of the center of mass crucial?

5 / 30

5. The braking force applied to a moving car brings it to rest. What happens to its momentum?

6 / 30

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

7 / 30

7. Which of the following analogies is correct?

8 / 30

8. How does rotational motion study help in daily life?

9 / 30

9. The moment of inertia of a uniform solid sphere about any diameter is:

10 / 30

10. Why does a diver spin faster when tucking their body during a dive?

11 / 30

11. A torque of 30 N·m produces an angular acceleration of 6 rad/s² in a wheel. What is the moment of inertia of the wheel?

12 / 30

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

13 / 30

13. If two bodies have the same mass and same moment of inertia, which one has a smaller radius of gyration?

14 / 30

14. Which of the following is an application of equilibrium in furniture design?

15 / 30

15. For a system of particles, the acceleration of the center of mass depends on:

16 / 30

16. Which of the following statements is true about the equations of motion for the center of mass?

17 / 30

17. A system has three particles of masses 2 kg, 3 kg, and 5 kg located at x = 0 m, x = 2 m, and x = 4 m. The x-coordinate of the center of mass is:

18 / 30

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

19 / 30

19. For a body in uniform circular motion, what is the relationship between the directions of angular velocity vector and linear velocity ?

20 / 30

20. If the area of a triangle with sides represented by vectors and is required, it is given by:

21 / 30

21. What is the mathematical relation between torque , moment of inertia , and angular acceleration ?

22 / 30

22. In rolling motion, the instantaneous axis of rotation lies at:

23 / 30

23. For a rolling object, which statement about friction is correct?

24 / 30

24. Why does a solid sphere reach the bottom of an incline faster than a hollow sphere?

25 / 30

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

26 / 30

26. 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?

27 / 30

27. The direction of geometrically represents:

28 / 30

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

29 / 30

29. The principle of conservation of linear momentum states that:

30 / 30

30. Which quantity in rotational motion is analogous to force in linear 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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