Forces and Matter – Online MCQs Test – Physics 9th

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

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

3. What is the unit for the spring constant?

4. When a force is exerted on an area, this is known as:

5. The pressure in a fluid is greater with:

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

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

8. Which of the following material is more elastic?

9. The pressure exerted by fluids acts in:

10. The spring in brakes and clutches are used:

11. 1 Pascal (Pa) = :

12. Within elastic limit, the displacement produced in the spring is directly proportional to the:

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

14. A hydraulic machine works on:

15. 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?

16. 1 atmosphere = :

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

18. 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.

19. 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 ____________

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