Forces and Matter – Online MCQs Test – Physics 9th

1. A hydraulic machine works on:

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

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

4. In SI system, unit of pressure is:

5. 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.

6. The spring in brakes and clutches are used:

7. The pressure in a fluid is greater with:

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

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

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

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

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

13. What is the unit for the spring constant?

14. Pressure = :

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

16. The pressure exerted by fluids acts in:

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

18. 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?

19. 1 Pascal (Pa) = :

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