Hydrostatics · CSEC Physics

31 past-paper questions on Hydrostatics, part of Mechanics, from every CSEC Physics paper on Quelpr.

1. 2(b)(i)2 marks· CSEC Physics · 1990 · Paper 2State the principle on which the action of this machine is based.
2. 2(b)(ii)2 marks· CSEC Physics · 1990 · Paper 2Explain how the principle is applied to obtain a force great enough to support a car.
3. 2(b)(iii)2 marks· CSEC Physics · 1990 · Paper 2A force of 480 N is applied to piston A of area 0.01 m^2. What is the resulting pressure on the liquid?
4. 2(b)(iv)1 mark· CSEC Physics · 1990 · Paper 2What is the pressure on the large piston?
5. 2(b)(v)2 marks· CSEC Physics · 1990 · Paper 2What is the total force exerted on the large piston if its area is 0.15 m^2?
6. 1(a)2 marks· CSEC Physics · 1995 · Paper 2State Archimedes' principle.
7. 1(b)(iv)2 marks· CSEC Physics · 1995 · Paper 2If the density of the air outside the balloon is 1.3 kg m⁻³, calculate the weight of the air which is displaced by the balloon.
8. 1(b)(v)2 marks· CSEC Physics · 1995 · Paper 2Explain why the balloon begins to rise when the air is heated to a higher temperature.
9. 1(b)(ii)3 marks· CSEC Physics · 1996 · Paper 2The girl's mass is 45 kg. What pressure does she exert on the ground when she is standing on one heel? (g = 10 N kg⁻¹)
10. 4(a)(ii)2 marks· CSEC Physics · 1997 · Paper 2What TWO factors lead to the pressure being lower at greater altitudes?
11. 4(b)(i)4 marks· CSEC Physics · 1997 · Paper 2If the weight used is 0.5 N, what is the pressure due to this weight? Convert your answer to kPa.
12. 4(b)(ii)1 mark· CSEC Physics · 1997 · Paper 2What is the total pressure acting on the contents if atmospheric pressure is 100 kPa?
13. 5(a)2 marks· CSEC Physics · 1998 · Paper 2State Archimedes' principle.
14. 5(b)2 marks· CSEC Physics · 1998 · Paper 2In terms of the forces acting on each object, explain why a tree floats in water while a nail sinks, even though the tree is much heavier.
15. 5(c)(iv)2 marks· CSEC Physics · 1998 · Paper 2Determine whether the rock would float or sink in bromoform (density 4000 kg m^-3). Explain your answer.
16. 4(a)(i)3 marks· CSEC Physics · May/June 2022 · Paper 2Define the term 'pressure'. State its SI unit.
17. 4(a)(ii)4 marks· CSEC Physics · May/June 2022 · Paper 2Calculate the liquid pressure that a diver experiences at a depth of 0.5 km below the surface of the sea, given that acceleration due to gravity, g = 10 N kg^-1 and the density of sea water, rho = 1025 kg m^-3.
18. 4(b)(i)3 marks· CSEC Physics · May/June 2022 · Paper 2State Archimedes' principle.
19. 4(b)(ii)5 marks· CSEC Physics · May/June 2022 · Paper 2A boat which has a weight of 83 000 N floats in sea water. If the density of the sea water is 1025 kg m^-3, calculate the volume of the sea water displaced by the boat.
20. 1(b)(i)2 marks· Physics Q1 1(b)(i)Write an equation linking liquid pressure, density and depth.
21. 1(b)(iii)4 marks· Physics Q1 1(b)(iii)Table 2 shows three liquids and their densities. Determine which of these liquids was used in the experiment.
22. 1(c)2 marks· Physics Q1 1(c)Using the graph you plotted on page 3, find the TOTAL pressure exerted on the base of the container in Figure 1. (Gravitational field strength, g = 10 Nkg⁻¹) (Atmospheric pressure = 1.03 × 10⁵ Pa)
23. 1(d)(i)2 marks· Physics Q1 1(d)(i)State, giving a reason, if the pressure of the gas is LESS than or GREATER than atmospheric pressure.
24. 1(d)(ii)2 marks· Physics Q1 1(d)(ii)Calculate the EXCESS pressure in mm Hg.
25. 2(b)(ii)2 marks· Physics Q2 2(b)(ii)Define the term 'pressure'.
26. 2(b)(ii)4 marks· Physics Q2 2(b)(ii)What pressure, in Newtons, would the cement exert on the base of the container? [g = 10 N kg⁻¹]
27. 2(b)(iii)4 marks· Physics Q2 2(b)(iii)Given that g = 10 N kg⁻¹, calculate the pressure exerted on the floor by the base of the concrete block.
28. 3(b)(i)3 marks· Physics Q3 3(b)(i)Calculate the pressure the diver is subjected to at 20 m below the surface of the water. [Density of water = 1025 kg m⁻³] [Acceleration due to gravity, g = 10 m s⁻²]
29. 3(d)(i)2 marks· Physics Q3 3(d)(i)State Archimedes' Principle.
30. 3(d)(ii)2 marks· Physics Q3 3(d)(ii)The yacht's hull is made of steel with density, ρ, equal 7850 kg m⁻³. Explain how the yacht is able to float in sea water of density, ρ_sea 1025 kg m⁻³.
31. 3(d)(iii)4 marks· Physics Q3 3(d)(iii)Calculate the volume of sea water displaced by the yacht as it floats.