Dynamics – Online MCQs Test – Physics 9th

1. Which statement is true for limiting frictional force?

2. Which equation represents the momentum?

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

4. Momentum is equal to the:

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

6. 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?

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

8. The S.I unit of momentum is:

9. 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:

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

11. Quantity of matter contained in body is called _____________.

12. These are always parallel to the plane of contact between two surfaces and opposite to the direction of the applied force.

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

14. It is inversely proportional to mass of body.

15. The centripetal force is equal to:

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

17. Centrifugal force is always directed:

18. The force required to move a body along a circular path is called:

19. The acceleration is directly proportional to:

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