Dynamics – Online MCQs Test – Physics 9th

1. Centrifugal force is always directed:

2. It is inversely proportional to mass of body.

3. Law of conservation of momentum defines that the total momentum of a system of two bodies before and after collision___________.

4. The acceleration is directly proportional to:

5. The momentum depends upon the:

6. The maximum static friction is known as:

7. It is a self-adjusting force.

8. The property of an object due to which it tends to continue its state of rest or motion is called:

9. Static friction is greater than:

10. It is the tendency of an object to leave the circular path and fly off in a straight line.

11. It is resistance to change the state of a body.

12. The S.I unit of momentum is:

13. It is very useful quantity when it comes to calculate what happens in collusion or explosion

14. Quantity of motion contained in a body is called:

15. Friction opposes motion between two bodies in contact because of:

16. It is a force acting on an object at rest that resists its ability to start moving.

17. The S.I unit of force is:

18. Which equation represents the momentum?

19. Which statement is true for limiting frictional force?

20. A man pulls a crate of mass 25 kg across the leveled ground with a horizontal force of 60N. A constant force of friction of 20N acts on the sledge. What is the acceleration of the sledge?