Pressure — Paper 2 · IGCSE Physics 0625

12 A force acts on an area to produce a pressure. Which changes produce the same pressure? A double the area and double the force B double the area and halve the force C double the area and make the force four times bigger D halve the area and double the force

1 marks

Answer: A

This question in 0625/22 Feb/March 2016

13 Identical toy bricks are placed one on top of another to make a tower on a table. bricks tower of bricks table Which graph shows the relationship between the pressure P that the tower exerts on the table and the weight W of the tower? A B C D P P P P 0 0 0 0 0 W 0 W 0 W 0 W

1 marks

Answer: D

This question in 0625/22 Feb/March 2016

12 A diver under water uses breathing apparatus at a depth where the pressure is 1.25 × 105 Pa. A bubble of gas breathed out by the diver has a volume of 20 cm3 when it is released. The bubble moves upwards to the surface of the water. At the surface of the water, the atmospheric pressure is 1.00 × 105 Pa. The temperature of the water is the same at all depths. What is the volume of this bubble when it reaches the surface? A 15 cm3 B 16 cm3 C 20 cm3 D 25 cm3

1 marks

Answer: D

This question in 0625/21 May/June 2016

13 The diagram shows a simple mercury barometer. V W mercury X Y Z The atmospheric pressure increases. Which distance increases? A VW B WY C XY D XZ

1 marks

Answer: B

This question in 0625/21 May/June 2016

12 A diver under water uses breathing apparatus at a depth where the pressure is 1.25 × 105 Pa. A bubble of gas breathed out by the diver has a volume of 20 cm3 when it is released. The bubble moves upwards to the surface of the water. At the surface of the water, the atmospheric pressure is 1.00 × 105 Pa. The temperature of the water is the same at all depths. What is the volume of this bubble when it reaches the surface? A 15 cm3 B 16 cm3 C 20 cm3 D 25 cm3

1 marks

Answer: D

This question in 0625/22 May/June 2016

13 The diagram shows a simple mercury barometer. V W mercury X Y Z The atmospheric pressure increases. Which distance increases? A VW B WY C XY D XZ

1 marks

Answer: B

This question in 0625/22 May/June 2016

12 A diver under water uses breathing apparatus at a depth where the pressure is 1.25 × 105 Pa. A bubble of gas breathed out by the diver has a volume of 20 cm3 when it is released. The bubble moves upwards to the surface of the water. At the surface of the water, the atmospheric pressure is 1.00 × 105 Pa. The temperature of the water is the same at all depths. What is the volume of this bubble when it reaches the surface? A 15 cm3 B 16 cm3 C 20 cm3 D 25 cm3

1 marks

Answer: D

This question in 0625/23 May/June 2016

13 The diagram shows a simple mercury barometer. V W mercury X Y Z The atmospheric pressure increases. Which distance increases? A VW B WY C XY D XZ

1 marks

Answer: B

This question in 0625/23 May/June 2016

12 The diagram shows a dam holding back water. 65 m water dam The depth of the water is 65 m. The density of the water is 1000 kg / m3. The gravitational field strength g is 10 N / kg. What is the pressure exerted at the base of the dam due to the water? A 15.4 Pa B 154 Pa C 65 000 Pa D 650 000 Pa

1 marks

Answer: D

This question in 0625/21 Oct/Nov 2016

13 Air is trapped in a cylinder by a piston. The original volume of the trapped air is V and the original pressure of the trapped air is P. The piston is pushed to the left. The temperature of the gas does not change. before piston is pushed in after piston is pushed in piston cylinder 25 50 25 50 trapped air trapped air What is the new volume and what is the new pressure of the trapped air? new volume new pressure P A 2V 2 B 2V 2P V P C 2 2 V D 2P 2

1 marks

Answer: D

This question in 0625/21 Oct/Nov 2016

13 The equation used to find the pressure caused by a liquid can be written as p = h × Y × Z where p is the pressure and h is the depth of the liquid. Which row gives the quantities Y and Z? Y Z A cross-sectional area gravitational field strength B cross-sectional area volume C density cross-sectional area D density gravitational field strength

1 marks

Answer: D

This question in 0625/22 Oct/Nov 2016

13 A container is filled with liquid to a certain depth h. container h liquid The pressure of the liquid at the bottom of the container depends on several factors. Which is one factor on which the pressure does not depend? A the strength of the Earth’s gravitational field B the density of the liquid C the depth of the liquid D the strength of the Earth’s magnetic field

1 marks

Answer: D

This question in 0625/23 Oct/Nov 2016

11 A column of liquid has height h, mass m and density ρ. The gravitational field strength is g. Which expression gives the pressure due to the column of liquid? A hρ B mρ C mgh D ρ gh

1 marks

Answer: D

This question in 0625/22 Feb/March 2017

12 The diagrams show two mercury barometers. The right-hand diagram shows a tube of larger diameter. There is a vacuum above the mercury in both tubes. Which labelled position on the right-hand tube shows the mercury level in the right-hand tube? A B C glass tubes D mercury

1 marks

Answer: B

This question in 0625/22 Feb/March 2017

13 Four different liquids are poured into four containers. The diagrams show the depth and the density of liquid in each container. In which container is the pressure on its base the greatest? A B C D 40 cm 30 cm 20 cm 10 cm liquid density liquid density liquid density liquid density = 3.1 g / cm3 = 1.2 g / cm3 = 1.3 g / cm3 = 0.8 g / cm3

1 marks

Answer: C

This question in 0625/21 May/June 2017

13 Four different liquids are poured into four containers. The diagrams show the depth and the density of liquid in each container. In which container is the pressure on its base the greatest? A B C D 40 cm 30 cm 20 cm 10 cm liquid density liquid density liquid density liquid density = 3.1 g / cm3 = 1.2 g / cm3 = 1.3 g / cm3 = 0.8 g / cm3

1 marks

Answer: C

This question in 0625/22 May/June 2017

4 What are the units for mass, pressure and velocity? mass pressure velocity A kg N s Pa B kg Pa m / s C N s Pa m / s D Pa N s m / s

1 marks

Answer: B

This question in 0625/23 May/June 2017

13 Four different liquids are poured into four containers. The diagrams show the depth and the density of liquid in each container. In which container is the pressure on its base the greatest? A B C D 40 cm 30 cm 20 cm 10 cm liquid density liquid density liquid density liquid density = 3.1 g / cm3 = 1.2 g / cm3 = 1.3 g / cm3 = 0.8 g / cm3

1 marks

Answer: C

This question in 0625/23 May/June 2017

13 The diagram shows a simple mercury barometer. cm vacuum 90 80 metre rule 70 60 50 40 30 20 10 mercury Which length is used to find the value of atmospheric pressure? A 12 cm B 74 cm C 86 cm D 100 cm

1 marks

Answer: B

This question in 0625/21 Oct/Nov 2017

16 The diagram shows an air-filled rubber toy. A child sits on the toy and its volume decreases. The temperature of the air in the toy does not change. How does the air pressure in the toy change and why? pressure reason A decreases air molecules move more slowly B decreases air molecules strike the rubber less frequently C increases air molecules move more quickly D increases air molecules strike the rubber more frequently

1 marks

Answer: D

This question in 0625/21 Oct/Nov 2017

13 The diagram shows a simple mercury barometer. cm vacuum 90 80 metre rule 70 60 50 40 30 20 10 mercury Which length is used to find the value of atmospheric pressure? A 12 cm B 74 cm C 86 cm D 100 cm

1 marks

Answer: B

This question in 0625/22 Oct/Nov 2017

15 The diagram shows an air-filled rubber toy. A child sits on the toy and its volume decreases. The temperature of the air in the toy does not change. How does the air pressure in the toy change and why? pressure reason A decreases air molecules move more slowly B decreases air molecules strike the rubber less frequently C increases air molecules move more quickly D increases air molecules strike the rubber more frequently

1 marks

Answer: D

This question in 0625/22 Oct/Nov 2017

13 The diagram shows a simple mercury barometer. cm vacuum 90 80 metre rule 70 60 50 40 30 20 10 mercury Which length is used to find the value of atmospheric pressure? A 12 cm B 74 cm C 86 cm D 100 cm

1 marks

Answer: B

This question in 0625/23 Oct/Nov 2017

15 The diagram shows an air-filled rubber toy. A child sits on the toy and its volume decreases. The temperature of the air in the toy does not change. How does the air pressure in the toy change and why? pressure reason A decreases air molecules move more slowly B decreases air molecules strike the rubber less frequently C increases air molecules move more quickly D increases air molecules strike the rubber more frequently

1 marks

Answer: D

This question in 0625/23 Oct/Nov 2017

13 Four identical beakers are filled with equal volumes of liquids P or Q, as shown. Liquid P is more dense than liquid Q. At which point is the pressure the least? liquid P B liquid Q D A C

1 marks

Answer: D

This question in 0625/21 May/June 2018

14 An oil tank has a base of area 2.5 m2 and is filled with oil to a depth of 1.2 m. The density of the oil is 800 kg / m3. What is the force exerted on the base of the tank due to the oil? A 960 N B 2400 N C 9600 N D 24 000 N

1 marks

Answer: D

This question in 0625/21 May/June 2018

13 A submarine is in water of density 1.0 × 103 kg / m3. The submarine changes its depth. This causes the pressure on it to change by 0.10 MPa. What is the change in depth of the submarine? A 0.10 m B 10 m C 100 m D 1000 m

1 marks

Answer: B

This question in 0625/22 May/June 2018

14 An oil tank has a base of area 2.5 m2 and is filled with oil to a depth of 1.2 m. The density of the oil is 800 kg / m3. What is the force exerted on the base of the tank due to the oil? A 960 N B 2400 N C 9600 N D 24 000 N

1 marks

Answer: D

This question in 0625/22 May/June 2018

15 When molecules of a gas rebound from a wall of a container, the wall experiences a pressure. What is the cause of this pressure? A the change in energy of the molecules B the change in momentum of the molecules C the change in power of the molecules D the change in speed of the molecules

1 marks

Answer: B

This question in 0625/22 May/June 2018

13 A simple barometer includes a column of mercury. Which property of this column of mercury is used to give a measurement of atmospheric pressure? A its cross-sectional area B its height C its temperature D its thermal capacity

1 marks

Answer: B

This question in 0625/23 May/June 2018

14 An oil tank has a base of area 2.5 m2 and is filled with oil to a depth of 1.2 m. The density of the oil is 800 kg / m3. What is the force exerted on the base of the tank due to the oil? A 960 N B 2400 N C 9600 N D 24 000 N

1 marks

Answer: D

This question in 0625/23 May/June 2018

12 A manometer is used to measure the pressure of a gas supply. manometer connection to gas supply h liquid Which change gives a greater value of height h ? A using a less dense liquid B using a more dense liquid C using a narrower tube D using a wider tube

1 marks

Answer: A

This question in 0625/21 Oct/Nov 2018

13 A washbasin has an exit pipe covered with a plug of area 12 cm2. A chain is attached to the centre of the plug to assist in pulling the plug away from the exit hole. The washbasin contains water to a depth of 0.080 m. The density of the water is 1000 kg / m3. chain plug What is the force acting on the plug due to the water? A 0.96 N B 800 N C 9600 N D 80 000 N

1 marks

Answer: A

This question in 0625/21 Oct/Nov 2018

12 A manometer is used to measure the pressure of a gas supply. manometer connection to gas supply h liquid Which change gives a greater value of height h ? A using a less dense liquid B using a more dense liquid C using a narrower tube D using a wider tube

1 marks

Answer: A

This question in 0625/22 Oct/Nov 2018

13 A washbasin has an exit pipe covered with a plug of area 12 cm2. A chain is attached to the centre of the plug to assist in pulling the plug away from the exit hole. The washbasin contains water to a depth of 0.080 m. The density of the water is 1000 kg / m3. chain plug What is the force acting on the plug due to the water? A 0.96 N B 800 N C 9600 N D 80 000 N

1 marks

Answer: A

This question in 0625/22 Oct/Nov 2018

12 A manometer is used to measure the pressure of a gas supply. manometer connection to gas supply h liquid Which change gives a greater value of height h ? A using a less dense liquid B using a more dense liquid C using a narrower tube D using a wider tube

1 marks

Answer: A

This question in 0625/23 Oct/Nov 2018

13 A washbasin has an exit pipe covered with a plug of area 12 cm2. A chain is attached to the centre of the plug to assist in pulling the plug away from the exit hole. The washbasin contains water to a depth of 0.080 m. The density of the water is 1000 kg / m3. chain plug What is the force acting on the plug due to the water? A 0.96 N B 800 N C 9600 N D 80 000 N

1 marks

Answer: A

This question in 0625/23 Oct/Nov 2018

15 A bubble of air has a volume of 2.0 cm3 at the bottom of a lake where the total pressure is 4.0 × 105 Pa. The temperature of the water in the lake is constant. The atmospheric pressure at the surface is 1.0 × 105 Pa. What is the volume of the bubble when it rises to the surface? A 0.13 cm3 B 0.17 cm3 C 6.0 cm3 D 8.0 cm3

1 marks

Answer: D

This question in 0625/23 Oct/Nov 2018

14 Which diagram shows an athlete exerting least pressure on the ground? A B C D

1 marks

Answer: B

This question in 0625/22 Feb/March 2019

15 The diagram shows a U-tube manometer containing three liquids: mercury, liquid X and liquid Y. Neither liquid X or liquid Y mixes with mercury. liquid X liquid Y mercury Which row compares the pressure exerted by liquid X and by liquid Y on the mercury, and the density of liquid X and the density of liquid Y? pressure exerted by X and densities of by Y on the mercury X and of Y A pressure of X is greater than Y density of X is greater than Y B pressure of Y is greater than X density of Y is greater than X C pressure of X and of Y is the same density of X is greater than Y D pressure of X and of Y is the same density of Y is greater than X

1 marks

Answer: D

This question in 0625/22 Feb/March 2019

16 Gas molecules exert a pressure when they collide with the walls of a container. Which statement is correct? A They experience a change in force which exerts a pressure equal to momentum × area on the walls. momentum on the B They experience a change in force which exerts a pressure equal to area walls. C They experience a change in momentum which exerts a pressure equal to force × area on the walls. force on the D They experience a change in momentum which exerts a pressure equal to area walls.

1 marks

Answer: D

This question in 0625/22 Feb/March 2019

13 The diagram shows a stone suspended on a string under the surface of a liquid. The stone experiences a pressure caused by the liquid. string stone liquid What would increase the pressure on the stone? A decreasing the surface area of the stone B increasing the mass of the stone C lowering the stone deeper into the liquid D using a liquid with a lower density

1 marks

Answer: C

This question in 0625/21 May/June 2019

13 The diagram shows a stone suspended on a string under the surface of a liquid. The stone experiences a pressure caused by the liquid. string stone liquid What would increase the pressure on the stone? A decreasing the surface area of the stone B increasing the mass of the stone C lowering the stone deeper into the liquid D using a liquid with a lower density

1 marks

Answer: C

This question in 0625/22 May/June 2019

13 The diagram shows a stone suspended on a string under the surface of a liquid. The stone experiences a pressure caused by the liquid. string stone liquid What would increase the pressure on the stone? A decreasing the surface area of the stone B increasing the mass of the stone C lowering the stone deeper into the liquid D using a liquid with a lower density

1 marks

Answer: C

This question in 0625/23 May/June 2019

13 A drawing pin (thumb tack) has a sharp point at one end and a flat surface at the other end. sharp point flat surface The pin is pushed into a wooden board. How do the pressure and the force at the sharp point compare with the pressure and the force on the flat surface? force at the sharp point pressure at the sharp point A greater than on the flat surface greater than on the flat surface B greater than on the flat surface less than on the flat surface C the same as on the flat surface greater than on the flat surface D the same as on the flat surface less than on the flat surface

1 marks

Answer: C

This question in 0625/21 Oct/Nov 2019

14 An object is 20 cm below the surface of a liquid. The density of the liquid is 1200 kg / m3. What is the pressure on the object due to the liquid? A 600 Pa B 2400 Pa C 60 000 Pa D 240 000 Pa

1 marks

Answer: B

This question in 0625/21 Oct/Nov 2019

16 A bubble of gas is formed deep under water. The bubble has a volume of 40 cm3 and the pressure inside the bubble is P. The bubble rises up through the water. The volume of the bubble increases to 56 cm3 and the pressure becomes 100 kPa. The temperature of the gas does not change. What is the initial pressure P ? A 71 Pa B 71 kPa C 140 Pa D 140 kPa

1 marks

Answer: D

This question in 0625/21 Oct/Nov 2019

14 A drawing pin (thumb tack) has a sharp point at one end and a flat surface at the other end. sharp point flat surface The pin is pushed into a wooden board. How do the pressure and the force at the sharp point compare with the pressure and the force on the flat surface? force at the sharp point pressure at the sharp point A greater than on the flat surface greater than on the flat surface B greater than on the flat surface less than on the flat surface C the same as on the flat surface greater than on the flat surface D the same as on the flat surface less than on the flat surface

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2019

15 The density of mercury is 13 600 kg / m3. What is the pressure at the bottom of a column of mercury that has a height of 75.0 cm? A 1.02 × 104 Pa B 1.02 × 105 Pa C 1.02 × 106 Pa D 1.02 × 107 Pa

1 marks

Answer: B

This question in 0625/22 Oct/Nov 2019

17 A bubble of air of volume 3.0 mm3 is under water. The bubble is at a depth where the pressure of the air inside the bubble is four times atmospheric pressure. The temperature of the air in the bubble stays the same as it rises to the surface. What is the volume of the air in the bubble as it reaches the surface? A 3.0 mm3 B 9.0 mm3 C 12 mm3 D 15 mm3

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2019

14 A drawing pin (thumb tack) has a sharp point at one end and a flat surface at the other end. sharp point flat surface The pin is pushed into a wooden board. How do the pressure and the force at the sharp point compare with the pressure and the force on the flat surface? force at the sharp point pressure at the sharp point A greater than on the flat surface greater than on the flat surface B greater than on the flat surface less than on the flat surface C the same as on the flat surface greater than on the flat surface D the same as on the flat surface less than on the flat surface

1 marks

Answer: C

This question in 0625/23 Oct/Nov 2019

14 A skier is standing still on a flat area of snow. skis The weight of the skier is 550 N. The total area of his skis in contact with the ground is 0.015 m2. What is the pressure exerted on the ground by the skier? A 0.83 N / m2 B 8.3 N / m2 C 3700 N / m2 D 37 000 N / m2

1 marks

Answer: D

This question in 0625/22 Feb/March 2020

15 A tall cylinder is partly filled with two liquids which do not mix. The two liquids have different densities. A student measures the pressure due to the liquids at different depths. position P two liquids with different densities position Q Which graph shows how the liquid pressure varies between positions P and Q? A B Q Q pressure pressure P P depth depth C D Q pressure pressure P Q P depth depth

1 marks

Answer: B

This question in 0625/22 Feb/March 2020

12 The diagram shows a solid block resting on a bench. The dimensions of the block are shown. 40 cm 20 cm Q R bench 80 cm P On which labelled surface should the block rest to produce the smallest pressure on the bench? A P B Q C R D P, Q and R produce the same pressure

1 marks

Answer: A

This question in 0625/21 May/June 2020

13 The pressure due to the liquid on an object immersed in that liquid is 4500 Pa. The density of the liquid is 900 kg / m3. What is the depth of the object below the surface of the liquid? A 0.5 cm B 2.0 cm C 50 cm D 200 cm

1 marks

Answer: C

This question in 0625/21 May/June 2020

12 The diagram shows a solid block resting on a bench. The dimensions of the block are shown. 40 cm 20 cm Q R bench 80 cm P On which labelled surface should the block rest to produce the smallest pressure on the bench? A P B Q C R D P, Q and R produce the same pressure

1 marks

Answer: A

This question in 0625/22 May/June 2020

13 An object is 60 cm below the surface of a liquid. The pressure due to the liquid at this depth is 9000 Pa. What is the density of the liquid? A 15 kg / m3 B 540 kg / m3 C 1500 kg / m3 D 54 000 kg / m3

1 marks

Answer: C

This question in 0625/22 May/June 2020

12 The diagram shows a solid block resting on a bench. The dimensions of the block are shown. 40 cm 20 cm Q R bench 80 cm P On which labelled surface should the block rest to produce the smallest pressure on the bench? A P B Q C R D P, Q and R produce the same pressure

1 marks

Answer: A

This question in 0625/23 May/June 2020

13 A pipe full of water connects a water supply on a hill to a tap lower down the hill. The length of the pipe is 500 m. The height of the supply above the tap is 100 m. The density of the water is 1000 kg / m3. The effect of atmospheric pressure is negligible. What is the water pressure at the tap? A 100 000 Pa B 500 000 Pa C 1 000 000 Pa D 5 000 000 Pa

1 marks

Answer: C

This question in 0625/23 May/June 2020

13 A barometer reads 780 mm Hg. Mercury has a density of 1.36  104 kg / m3. What is the pressure of the atmosphere in N / m2? A 1.1  104 N / m2 B 1.1  105 N / m2 C 1.1  107 N / m2 D 1.1  108 N / m2

1 marks

Answer: B

This question in 0625/21 Oct/Nov 2020

14 The diagram shows a mercury barometer. Which height is used as a measurement of atmospheric pressure? D mercury C B A

1 marks

Answer: C

This question in 0625/21 Oct/Nov 2020

13 A research submarine is at a depth of 10 000 m below the surface of the sea. The average density of the water above the submarine is 1030 kg / m3. The atmospheric pressure at the surface of the sea is 103 000 Pa. How many times greater is the pressure due to the sea water than the atmospheric pressure? A 10 B 100 C 1000 D 100 000

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2020

14 The diagram shows a mercury barometer. Which height is used as a measurement of atmospheric pressure? D mercury C B A

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2020

6 A square wooden raft floats on a lake. The density of the water in the lake is 1000 kg / m3. The sides of the raft are 2.0 m long and the thickness of the raft is 0.20 m. The mass of the raft is 700 kg. How many barrels, each of mass 100 kg, could be placed on the raft before its surface sinks to the surface of the water? A 1 B 7 C 8 D 15

1 marks

Answer: A

This question in 0625/23 Oct/Nov 2020

13 A student calculates the pressure due to the liquid at point X. liquid X The student takes four measurements. 1 density of the liquid 2 temperature of the liquid 3 depth of point X below the surface of the liquid 4 surface area of the liquid Which measurements must the student use in her pressure calculation? A 3 and 4 B 1 and 3 C 1 and 2 D 2 and 3

1 marks

Answer: B

This question in 0625/23 Oct/Nov 2020

14 The diagram shows a mercury barometer. Which height is used as a measurement of atmospheric pressure? D mercury C B A

1 marks

Answer: C

This question in 0625/23 Oct/Nov 2020

12 The diagram shows a manometer connected to a gas supply. mm 500 from 400 gas supply 300 200 100 mercury 0 What is the pressure of the gas supply? A 100 mm Hg above atmospheric pressure B 100 mm Hg below atmospheric pressure C 200 mm Hg above atmospheric pressure D 200 mm Hg below atmospheric pressure

1 marks

Answer: C

This question in 0625/22 Feb/March 2021

13 The diagram shows a box of dimensions 6.0 cm  8.0 cm  4.0 cm. 6.0 cm X Z 4.0 cm Y 8.0 cm The box rests on a flat horizontal surface. On which face must the box rest in order to exert the least pressure? A face X B face Y C face Z D The pressure is the same for all the faces.

1 marks

Answer: A

This question in 0625/22 Feb/March 2021

14 Air in a sealed syringe is slowly compressed by moving the piston. The temperature of the air stays the same. air syringe piston Which statement about the air is correct? A The pressure of the air decreases because its molecules now travel more slowly. B The pressure of the air decreases because the area of the syringe walls is now smaller. C The pressure of the air increases because its molecules now hit the syringe walls more frequently. D The pressure of the air increases because its molecules now travel more quickly.

1 marks

Answer: C

This question in 0625/22 Feb/March 2021

12 A book has a mass of 400 g. The surface of the book in contact with a table has dimensions 0.10 m  0.20 m. The gravitational field strength g is 10 N / kg. What is the pressure exerted on the table due to the book? A 0.08 N / m2 B 8.0 N / m2 C 20 N / m2 D 200 N / m2

1 marks

Answer: D

This question in 0625/22 May/June 2021

13 A horizontal metal plate of area 0.50 m2 lies at the bottom of a lake at a depth of 40 m. The density of water is 1000 kg / m3 and the gravitational field strength g is 10 N / kg. What is the downward force acting on the plate due to the water? A 20 kN B 80 kN C 200 kN D 800 kN

1 marks

Answer: C

This question in 0625/22 May/June 2021

11 Four containers are filled to the top with the same liquid. The base of each container is circular. Which container has the greatest pressure exerted by the liquid at its base? A B C D

1 marks

Answer: A

This question in 0625/21 Oct/Nov 2021

13 The diagram shows two cylinders connected by a narrow tube fitted with a tap. tap 80 cm3 20 cm3 One cylinder contains 80 cm3 of gas at a pressure of 2.0  105 Pa. The other cylinder contains a vacuum. The volume of the evacuated cylinder is 20 cm3. The tap is opened so that the gas can flow to fill both cylinders. The temperature of the gas remains constant. What is the new pressure of the gas? A 0.50  105 Pa B 1.6  105 Pa C 2.5  105 Pa D 8.0  105 Pa

1 marks

Answer: B

This question in 0625/21 Oct/Nov 2021

11 Which equation can be used to calculate the pressure at a depth h beneath the surface of a liquid? p = h p = h  1 A B C p = hg D p =  g g h g 

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2021

11 The diagram shows three glass containers. All three contain water filled to the same vertical height h. P Q R h h h wooden block supporting R The base area of P is equal to the base area of R. The base area of Q is larger than the other two. Students are asked to compare the water pressure at the bottom of each container. Student 1 says that the pressure at base R is more than the pressure at base P. Student 2 says that the pressure at base Q is less than the pressure at base P. Student 3 says that the pressures at all three bases are the same. Which students are correct? A none are correct B 1 only C 2 only D 3 only

1 marks

Answer: D

This question in 0625/23 Oct/Nov 2021

14 An object is at rest on a horizontal surface. Which equation is used to calculate the pressure that the object exerts? mass of the object A area of contact weight of the object B area of contact C mass of the object  area of contact D weight of the object  area of contact

1 marks

Answer: B

This question in 0625/22 Feb/March 2022

13 The diagram shows a deep reservoir formed by a dam. water dam X On what does the pressure at X depend? A the depth of the water at X B the length of the reservoir C the surface area of the water D the thickness of the dam wall

1 marks

Answer: A

This question in 0625/21 May/June 2022

13 The diagram shows a deep reservoir formed by a dam. water dam X On what does the pressure at X depend? A the depth of the water at X B the length of the reservoir C the surface area of the water D the thickness of the dam wall

1 marks

Answer: A

This question in 0625/22 May/June 2022

13 The diagram shows a deep reservoir formed by a dam. water dam X On what does the pressure at X depend? A the depth of the water at X B the length of the reservoir C the surface area of the water D the thickness of the dam wall

1 marks

Answer: A

This question in 0625/23 May/June 2022

14 The diagram shows gas particles hitting the wall of a container. The system is at room temperature. Why do the gas particles exert a pressure on the wall? A When the particles hit the wall, their momentum changes, which causes a force. B When the particles hit the wall, their average kinetic energy increases. C The particles expand when they hit the wall. D The particles collide with each other.

1 marks

Answer: A

This question in 0625/23 May/June 2022

11 A manometer containing water is used to measure the pressure of a gas supply, as shown. water gas supply 40 cm 10 cm The density of water is 1000 kg / m3. What is the pressure of the gas supply? A 300 Pa above atmospheric pressure B 400 Pa above atmospheric pressure C 3000 Pa above atmospheric pressure D 4000 Pa above atmospheric pressure

1 marks

Answer: C

This question in 0625/21 Oct/Nov 2022

12 A fixed mass of gas is trapped in a container. The temperature of the gas is increased but the volume of the gas is kept constant. fixed mass of gas How does this change affect the average kinetic energy of the molecules and the pressure on the walls of the container? average pressure kinetic energy A increases increases B stays the same increases C increases decreases D decreases increases

1 marks

Answer: A

This question in 0625/21 Oct/Nov 2022

11 The diagram shows a tank containing sea water. sea water NOT TO tank 8.0 m SCALE P 60 cm The density of the sea water is 1020 kg / m3. What is the pressure at point P relative to atmospheric pressure? A 7400 Pa above atmospheric pressure B 7500 Pa above atmospheric pressure C 75 000 Pa above atmospheric pressure D 82 000 Pa above atmospheric pressure

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2022

12 The pressure of a fixed mass of gas in a cylinder is measured. The volume of the gas in the cylinder is slowly decreased. The temperature of the gas does not change. Which graph shows how the pressure of the gas changes during this process? A B pressure pressure 0 0 0 time 0 time C D pressure pressure 0 0 0 time 0 time

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2022

11 A measuring cylinder of cross-sectional area 4.0 cm2 contains 224 cm3 of liquid. The pressure of the liquid at the base of the measuring cylinder due to the liquid is 8800 Pa. What is the density of the liquid? A 224 kg / m3 B 385 kg / m3 C 1600 kg / m3 D 2200 kg / m3

1 marks

Answer: C

This question in 0625/23 Oct/Nov 2022

12 The pressure of a fixed mass of gas in a cylinder is measured. The volume of the gas in the cylinder is slowly decreased. The temperature of the gas does not change. Which graph shows how the pressure of the gas changes during this process? A B pressure pressure 0 0 0 time 0 time C D pressure pressure 0 0 0 time 0 time

1 marks

Answer: C

This question in 0625/23 Oct/Nov 2022

13 The diagram shows a rectangular block of weight 16 N. It is resting on a flat surface. 4.0 cm 5.0 cm 9.0 cm What is the pressure at the base of the block due to its weight? A 0.089 N / cm2 B 0.36 N / cm2 C 0.80 N / cm2 D 320 N / cm2

1 marks

Answer: C

This question in 0625/22 Feb/March 2023

14 An oil tank has a base of area 2.5 m2 and is filled with oil to a depth of 1.2 m. The density of the oil is 800 kg / m3. What is the force exerted on the base of the tank due to the oil? A 940 N B 2400 N C 9400 N D 24 000 N

1 marks

Answer: D

This question in 0625/22 Feb/March 2023

13 A dam holds water in a reservoir. The height of the water in the reservoir is 15 m. dam water in 15 m reservoir The density of water is 1000 kg / m3. What is the pressure due to the water at the bottom of the dam? A 6.8 Pa B 1500 Pa C 15 000 Pa D 150 000 Pa

1 marks

Answer: D

This question in 0625/21 May/June 2023

13 The density of sea water is 1030 kg / m3. The gravitational field strength on the Earth is 9.8 N / kg. Atmospheric pressure is 101 000 Pa. At which depth in sea water is the total pressure due to the atmosphere and the water equal to 513 000 Pa? A 40.8 m B 50.8 m C 400 m D 498 m

1 marks

Answer: A

This question in 0625/22 May/June 2023

13 The graph shows how the pressure due to a liquid varies with the depth beneath the liquid surface. The gravitational field strength g is 9.8 N / kg. 8000 pressure due to the liquid / Pa 6000 4000 2000 0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 depth beneath the liquid surface / m What is the density of the liquid? A 200 kg / m3 B 820 kg / m3 C 2000 kg / m3 D 8200 kg / m3

1 marks

Answer: B

This question in 0625/23 May/June 2023

11 The water in a swimming pool exerts a pressure at the bottom of the pool. Which graph shows the relationship between the pressure exerted by the water and the depth of water in the pool? (Assume the density of water is constant.) A B pressure pressure 0 0 0 depth 0 depth C D pressure pressure 0 0 0 depth 0 depth

1 marks

Answer: C

This question in 0625/21 Oct/Nov 2023

13 A gas is contained in a cylinder by a movable piston. gas cylinder piston The gas is heated so that it expands at constant pressure. How is the force of each collision of a gas particle with the piston affected and how does the frequency of collisions between the gas particles and the piston change? force frequency A increases decreases B increases increases C stays the same decreases D stays the same increases

1 marks

Answer: A

This question in 0625/21 Oct/Nov 2023

11 An object is a depth h below the surface of a liquid. The pressure due to the liquid at this depth is p. The gravitational field strength is g. What is the density  of the liquid? pg ph p A  = pgh B  = h C  = g D  = hg

1 marks

Answer: D

This question in 0625/22 Oct/Nov 2023

11 An object is immersed in a liquid of density ρ. The pressure at this depth due to the liquid is p. The gravitational field strength is g. What is the equation for the depth h of the object beneath the surface? ρ g p pg A h = pρ g B h = p C h = D h = ρ ρ g

1 marks

Answer: C

This question in 0625/23 Oct/Nov 2023

8 The diagram shows a column of liquid. The pressure, due to the liquid, at the bottom of the liquid is 6000 N / m2. 50 cm What is the density of the liquid? A 310 kg / m3 B 1200 kg / m3 C 29 000 kg / m3 D 120 000 kg / m3

1 marks

Answer: B

This question in 0625/22 Feb/March 2024

10 Gas of volume 200 cm3 is trapped inside a container by a piston. The piston is pushed to the right and the volume of the gas decreases to 100 cm3. The temperature of the gas remains constant. trapped gas piston container Which row states the effect that this has on the kinetic energy of the gas particles and the force per unit area exerted by the particles colliding with the inside walls of the container? kinetic energy force per unit area A doubles doubles B doubles stays the same C stays the same doubles D stays the same stays the same

1 marks

Answer: C

This question in 0625/21 May/June 2024

11 Which graph shows the relationship between the pressure and volume of a fixed mass of gas at constant temperature? A B pressure pressure 0 0 0 volume 0 volume C D pressure pressure 0 0 0 volume 0 volume

1 marks

Answer: D

This question in 0625/21 May/June 2024

8 The equation p = gh can be used for a liquid. What is the meaning of the term  ? A pressure due to the liquid B density of the liquid C total pressure due to the liquid and the air above the liquid D density of an object placed in the liquid

1 marks

Answer: B

This question in 0625/22 May/June 2024

8 An object taken underwater will be damaged if the total pressure acting on it is greater than 2.1 MPa. What is the maximum depth that the object can be taken underwater before it breaks? atmospheric pressure = 101 000 Pa density of water = 1000 kg / m3 A 10.3 m B 204 m C 214 m D 225 m

1 marks

Answer: B

This question in 0625/23 May/June 2024

12 The diagram shows a quantity of gas trapped in a cylinder. The piston is pushed in slowly and the gas is compressed. The temperature of the gas does not change. gas piston pushed in piston Which graph shows the relationship between the pressure and the volume of the gas? A B pressure pressure 0 0 0 volume 0 volume C D pressure pressure 0 0 0 volume 0 volume

1 marks

Answer: B

This question in 0625/23 May/June 2024

11 An elephant of weight 45 000 N stands with all four feet on the floor. The average pressure on the floor due to the elephant foot in contact with it is 34 000 Pa. What is the area of each foot of the elephant? A 0.19 m2 B 0.33 m2 C 0.76 m2 D 1.3 m2

1 marks

Answer: B

This question in 0625/21 Oct/Nov 2024

12 Some air is trapped inside a metal container with a tightly fitting lid. tightly fitting lid metal container air heat The container is heated strongly behind a safety screen. The lid is blown off by the increased pressure of the air inside the container. What causes the increase in pressure of the air inside the container? A Each air particle expands and takes up more room. B The air particles move more quickly. C The number of particles inside the container increases. D The volume occupied by the air decreases.

1 marks

Answer: B

This question in 0625/21 Oct/Nov 2024

11 Some altimeters use the change in air pressure to measure height. If the pressure is 100 kPa at sea level on a particular day, what will the pressure be at the top of an 830 m hill? (Take the density of air to be constant at 1.3 kg / m3.) A 1.1 kPa B 11 kPa C 89 kPa D 110 kPa

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2024

11 Four tanks contain water to the depths shown. At the bottom of which tank is the pressure due to the water greatest? A B C D 10 cm 9 cm 8 cm 7 cm

1 marks

Answer: A

This question in 0625/23 Oct/Nov 2024

13 Air in a sealed syringe is slowly compressed by moving the piston. The temperature of the air stays the same. air syringe piston Which statement about the air is correct? A The pressure of the air decreases because its particles now travel more slowly. B The pressure of the air decreases because the area of the syringe walls is now smaller. C The pressure of the air increases because its particles now hit the syringe walls more frequently. D The pressure of the air increases because its particles now travel more quickly.

1 marks

Answer: C

This question in 0625/23 Oct/Nov 2024

7 A tall cylinder is partly filled with two liquids, which do not mix. The two liquids have different densities. A student measures the pressure due to the liquids at different depths. position P liquids with different densities position Q Which graph shows how the liquid pressure varies between positions P and Q? A B Q Q pressure pressure P P depth depth C D Q pressure pressure P Q P depth depth

1 marks

Answer: B

This question in 0625/22 Feb/March 2025

16 A fixed mass of gas is contained within a sealed syringe at a pressure of 100 kPa. The plunger is slowly moved until the pressure is 80 kPa. The final volume of the gas is 50 cm3. The temperature of the gas does not change. What is the volume of the gas before the plunger is moved? A 0.25 cm3 B 40 cm3 C 63 cm3 D 160 cm3

1 marks

Answer: B

This question in 0625/22 Feb/March 2025

9 A farmer has two carts. The carts have the same weight, but one has four narrow wheels and the other has four wide wheels. narrow wheel wide wheel Which cart wheels sink less into soft ground and what is the reason? cart wheels reason A narrow greater pressure on the ground B narrow less pressure on the ground C wide greater pressure on the ground D wide less pressure on the ground

1 marks

Answer: D

This question in 0625/21 May/June 2025

11 A fixed mass of gas has a volume of 1.2 m3 and is at a pressure of 200 kPa. The gas expands at constant temperature to a volume of 1.8 m3. What is the new pressure of the gas? A 120 kPa B 130 kPa C 300 kPa D 600 kPa

1 marks

Answer: B

This question in 0625/21 May/June 2025

12 A bubble of gas rises from the bottom of a lake to the top. The table shows readings of the gas pressure inside the bubble and the volume of the bubble. The temperature of the water in the lake is constant. The values in three rows of the table are correct and one row is not correct. Which row is not correct? pressure / kPa volume / cm3 A 360 2.4 B 270 3.2 C 160 4.6 D 120 7.2

1 marks

Answer: C

This question in 0625/22 May/June 2025

12 Gas particles exert a pressure when they collide with the walls of a container. Which statement about the gas particles is correct? A They experience a change in force, which results in a pressure equal to momentum  area. momentum . B They experience a change in force, which results in a pressure equal to area C They experience a change in momentum, which results in a pressure equal to force  area. force . D They experience a change in momentum, which results in a pressure equal to area

1 marks

Answer: D

This question in 0625/23 May/June 2025

9 Diagram 1 shows a conical flask containing water. Diagram 2 shows a beaker with the same base area as the flask and containing water of the same depth d. diagram 1 diagram 2 water water d d X Y P Which statement is correct? A The pressure at P is equal to the pressure at X. B The pressure at P is greater than the pressure at Y. C The pressure at P is greater than the pressure at X. D The pressure at Y is greater than the pressure at X.

1 marks

Answer: A

This question in 0625/21 Oct/Nov 2025

10 A flask with a tight-fitting stopper contains a gas. The gas and flask are initially at room temperature. tight-fitting stopper gas The gas and flask are cooled. Which row describes the average speed of the gas particles and the pressure of the gas as the temperature decreases? average speed of pressure of the gas particles the gas A decreases decreases B decreases stays the same C increases increases D increases stays the same

1 marks

Answer: A

This question in 0625/21 Oct/Nov 2025

9 Two beakers are filled to the same depth, one with water and one with oil. The density of water is 1000 kg / m3. The density of oil is 920 kg / m3. In which position is the pressure the greatest? A A C water oil B B D

1 marks

Answer: B

This question in 0625/22 Oct/Nov 2025

11 A football is inflated in a warm room and then taken outside where the temperature is much lower. The pressure and temperature inside the ball both decrease. The volume of the ball is unchanged. Which row explains the decrease in pressure in terms of the movement of air particles? frequency of collisions kinetic energy between air particles and of air particles inside surface of ball A decreased decreased B decreased unchanged C unchanged decreased D unchanged unchanged

1 marks

Answer: A

This question in 0625/23 Oct/Nov 2025

12 A fixed mass of gas has a volume of 25 cm3. The pressure of the gas is 100 kPa. The volume of the gas is slowly decreased by 15 cm3 at constant temperature. What is the change in pressure of the gas? A 67 kPa B 150 kPa C 170 kPa D 250 kPa

1 marks

Answer: B

This question in 0625/23 Oct/Nov 2025