Dynamics – Online MCQs Test – Physics 9th

1. Which statement is true for limiting frictional force?

2. Weigh of a body can be measured using a spring balance, it differs from place to place because of variation in __________.

3. The centripetal force is equal to:

4. Momentum is equal to the:

5. It is easier to push an empty shopping cart than a full one because the filled cart has more mass than the empty one. This can be expressed by:

6. The magnitude of a force can be measured using a:

7. The S.I unit of force is:

8. It is a self-adjusting force.

9. Which equation represents the momentum?

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

11. The momentum depends upon the:

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

13. When a bus starts moving the passengers feel a:

14. 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?

15. The S.I unit of momentum is:

16. Centrifugal force is always directed:

17. Static friction is greater than:

18. The acceleration is directly proportional to:

19. Newton’s First law of motion is also known as the law of:

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