Home | Motion of System of Particles and Rigid Bodies: Important Questions

# Motion of System of Particles and Rigid Bodies: Important Questions

Short Answer Questions, Long Answer Questions, Numerical Problems with Answers, Conceptual Questions with Answers - Motion of System of Particles and Rigid Bodies - Physics Important and Book Back Questions

1. Define center of mass.

2. Find out the center of mass for the given geometrical structures.

a) Equilateral triangle b) Cylinder c) Square

3. Define torque and mention its unit.

4. What are the conditions in which force can not produce torque?

5. Give any two examples of torque in day-to-day life.

6. What is the relation between torque and angular momentum?

7. What is equilibrium?

8. How do you distinguish between stable and unstable equilibrium?

9. Define couple.

10. State principle of moments.

11. Define center of gravity.

12. Mention any two physical significance of moment of inertia

13. What is radius of gyration?

14. State conservation of angular momentum.

15. What are the rotational equivalents for the physical quantities, (i) mass and (ii) force?

16. What is the condition for pure rolling?

17. What is the difference between sliding and slipping?

1. Explain the types of equilibrium with suitable examples.

2. Explain the method to find the center of gravity of a irregularly shaped lamina.

3. Explain why a cyclist bends while negotiating a curve road? Arrive at the expression for angle of bending for a given velocity.

4. Derive the expression for moment of inertia of a rod about its center and perpendicular to the rod.

5. Derive the expression for moment of inertia of a uniform ring about an axis passing through the center and perpendicular to the plane.

6. Derive the expression for moment of inertia of a uniform disc about an axis passing through the center and perpendicular to the plane.

7. Discuss conservation of angular momentum with example.

8. State and prove parallel axis theorem.

9. State and prove perpendicular axis theorem.

10. Discuss rolling on inclined plane and arrive at the expression for the acceleration.