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Class 11 Physics Practice Test: Mechanical Properties of Fluids - Pressure
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Avg score: 30% • Most missed: “Assume a force of 30 N is distributed over a surface of area 2m2 in such a way t…”

Fluid pressure is the force per unit area that acts on an object in the fluid or on a closed container's surface.

The cause of this pressure is due to acceleration, gravity, or by forces that are outside the closed container.

Class 11 Physics Practice Test: Mechanical Properties of Fluids - Pressure
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19 Questions

1. A force F is applied on a uniform rod of cross-section A and a force F’ is applied on a uniform rod of cross-section 3A. What is the relation between F and F’ if the pressure on both is the same?
2. From which of the following is the working of hydraulic machines based on?
3. A force is applied on a cube of side 3m. Another force, double the magnitude of the previous force is applied on a cube of 1m. What is the ratio of pressure on the first cube (P) to the pressure on the second cube (P’)?
4. Which of the following is used to measure pressure?
5. When the area decreases _____
6. Pascal’s Law is valid only for _____
7. Which of the following is used to measure pressure?
8. When the area decreases _____
9. What is Pascal’s Law?
10. Assume a force of 30 N is distributed over a surface of area 2m2 in such a way that at each point force can be considered to act at an angle of 30° to the normal at that point. What will be the value of pressure on that plane?
11. From which of the following is the working of hydraulic machines based on?
12. What is the pressure at points A, B, C & D marked in the given mercury barometer? Assume that you have used a tube of length greater than 76cm and then filled it completely with mercury and then inverted into a jar. Let P0 be atmospheric pressure, g be acceleration due to gravity and ρ be the density of mercury.
13. A force F is applied on a uniform rod of cross-section A and a force F’ is applied on a uniform rod of cross-section 3A. What is the relation between F and F’ if the pressure on both is the same?
14. Which device is used to measure pressure?
15. Pressure is a vector quantity. True or False?
16. A nail is made pointed at its end to ensure that pressure is more for a given amount of force applied on it. True or False?
17. A nail is made pointed at its end to ensure that pressure is more for a given amount of force applied on it. True or False?
18. Fluid C has a relative density of 10, while fluid D has a relative density of 15. If the height of liquid C is 7cm, what will be the difference in heights of liquid D in the two tubes? In the diagram point 1 is in liquid D just after the end of liquid C.
19. Pressure is a vector quantity. True or False?

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