Forces and Matter – Online MCQs Test – Physics 9th

1. The spring in brakes and clutches are used:

2. Pressure of a fluid P is proportional to the:

3. If the material recovers the original dimension, when an external force is removed, this deformation is known as deformation.

4. The length of spring increases as the force increases. This increase in length of spring is known as:

5. The pressure exerted by fluids acts in:

6. If a spring stretches easily then its spring constant has ____________

7. It is a collection of molecules that are randomly arranged and held together by weak cohesive forces and by forces exerted by the walls of a container.

8. Forces on an object can cause:

9. The equation for Hooke’s law may by written as:

10. A hydraulic machine works on:

11. What is the unit for the spring constant?

12. If a metal block applies a force of 20N on an area of 5cm². Find the pressure being applied by the block on the area of ____________

13. In SI system, unit of pressure is:

14. Which of the following material is more elastic?

15. The machines in which force is transmitted by liquids under pressure is known as:

16. Which of the following is not a unit of pressure?

17. Pressure = :

18. Pressure is greater when a large force acts on:

19. The given figure shows a container with three spouts. The container is filled with water. Jets of water pour out of the spouts. Why does the jet of water from the bottom spout go farthest out from the container?

20. It tells us how tightly matter is packed together.