Pressure — Paper 1 · IGCSE Physics (9-1) 0972

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 0972/11 May/June 2018

14 A woman has a weight of 600 N. She stands on a horizontal floor. The area of her feet in contact with the floor is 0.050 m2. What is the pressure she exerts on the floor? A 1.2 × 103 N / m2 B 2.4 × 103 N / m2 C 1.2 × 104 N / m2 D 2.4 × 104 N / m2

1 marks

Answer: C

This question in 0972/11 May/June 2018

12 Four identical submarines P, Q, R and S are lowered from one depth to another in water of a constant density. The initial and final depths of each submarine are shown in the diagram. water surface submarine submarine P R 10 m submarine S 30 m submarine Q 50 m 70 m Which row is correct for the difference in pressure from the initial to final depth of each submarine? least change greatest change in pressure in pressure A submarines P and Q submarines R and S B submarines P and Q submarine R only C submarine P only submarines R and S D submarine P only submarine R only

1 marks

Answer: A

This question in 0972/11 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 0972/11 May/June 2019

14 Why can a gas be compressed easily into a smaller volume? A The molecules are far apart. B The molecules do not attract each other. C The molecules move randomly. D The volume of each molecule can be reduced.

1 marks

Answer: A

This question in 0972/11 May/June 2019

12 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 0972/11 Oct/Nov 2019

13 The table shows four forces. Each force acts on a different surface. Which row shows the least pressure? size of the area of the surface force / N / m2 A 0.30 0.040 B 10 2.0 C 60 15 D 1200 40

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2019

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 0972/11 May/June 2020

13 Four submarines are submerged. The density of fresh water is 1000 kg / m3 and the density of sea water is 1020 kg / m3. Which submarine experiences the greatest pressure due to the water? A B water surface water surface fresh water 100 m fresh water 120 m submarine submarine C D water surface water surface sea water 100 m sea water 120 m submarine submarine

1 marks

Answer: D

This question in 0972/11 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 0972/12 May/June 2020

13 A beaker contains a liquid. liquid X On what does the liquid pressure at position X depend? A both the density of the liquid and the depth of X below the surface B both the surface area of the liquid and the depth of X below the surface C both the surface area of the liquid and the volume of the liquid D the depth of X below the surface only

1 marks

Answer: A

This question in 0972/12 May/June 2020

15 A gas, in a sealed container, is compressed slowly so that its temperature does not change. What happens to the molecules of the gas as a result of this compression? A The average speed of the molecules increases. B The average force in a collision between a molecule and the container increases. C There are more frequent collisions between molecules and the container. D The volume of each molecule decreases.

1 marks

Answer: C

This question in 0972/12 May/June 2020

12 A rectangular marble block has dimensions 1 m by 1 m by 5 m and weighs 125 000 N. The marble block is stored with the long side resting on the ground, as in diagram 1. diagram 1 diagram 2 What is the change in the pressure on the ground due to the block when the block is stored as in diagram 2 rather than diagram 1? A a decrease of 25 000 Pa B an increase of 100 000 Pa C an increase of 125 000 Pa D no change

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2020

13 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 0972/11 Oct/Nov 2020

14 On a warm day, a driver checks the air pressure in a car tyre. At night, the temperature drops and the air pressure in the tyre decreases. There are no air leaks in the tyre. Why does the pressure decrease? A The air molecules in the tyre move more slowly. B The air molecules in the tyre stop moving. C The volume of the air in the tyre decreases. D The volume of the air in the tyre increases.

1 marks

Answer: A

This question in 0972/11 Oct/Nov 2020

11 The box shown has a weight of 15 N. 0.30 m 0.20 m face Q 0.50 m face P The box is resting on a horizontal surface with face P in contact with the surface. What is the change in pressure on the surface if the box falls over onto face Q? A 0.0040 m2 / N B 0.0067 m2 / N C 100 N / m2 D 250 N / m2

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2021

11 Liquid of mass 92 kg is contained in a rectangular tank. The area of the base of the tank is 0.23 m2. What is the pressure exerted by the liquid on the base of the tank? A 2.5  10– 4 N / m2 B 2.5  10– 3 N / m2 C 400 N / m2 D 4000 N / m2

1 marks

Answer: D

This question in 0972/11 May/June 2022

12 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 0972/11 May/June 2022

11 The table shows the weights and base areas of four metal blocks. Which block exerts the greatest pressure on its base? area of weight / N base / m2 A 3 000 0.20 B 10 000 0.50 C 16 000 2.0 D 20 000 1.5

1 marks

Answer: B

This question in 0972/12 May/June 2022

12 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 0972/12 May/June 2022

13 A woman has a weight of 600 N. She stands on a horizontal floor. The area of her feet in contact with the floor is 0.050 m2. What is the pressure she exerts on the floor? A 1.2 × 103 N / m2 B 2.4 × 103 N / m2 C 1.2 × 104 N / m2 D 2.4 × 104 N / m2

1 marks

Answer: C

This question in 0972/11 May/June 2023

13 A rectangular marble block has dimensions 1 m by 1 m by 5 m and weighs 125 000 N. The marble block is stored with the long side resting on the ground, as in diagram 1. diagram 1 diagram 2 What is the change in the pressure on the ground due to the block when the block is stored as in diagram 2 rather than diagram 1? A a decrease of 25 000 N / m2 B an increase of 100 000 N / m2 C an increase of 125 000 N / m2 D no change

1 marks

Answer: B

This question in 0972/12 May/June 2023

11 When a diver swims down from the surface of the water to a depth of 10 m, the pressure experienced increases from 100 000 N / m2 to 200 000 N / m2. Which statement explains this increase in pressure? A The density of the water increases with depth. B The gravitational field strength increases with depth. C The weight of water above the diver increases with depth. D Water cannot be compressed.

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2023

8 Four identical submarines, P, Q, R and S, are lowered from one depth to another in water of a constant density. The initial and final depths of each submarine are shown. water surface submarine submarine P R 10 m submarine S 30 m submarine Q 50 m 70 m Which row is correct for the difference in pressure from the initial to the final depth of each submarine? least change greatest change in pressure in pressure A submarines P and Q submarines R and S B submarines P and Q submarine R only C submarine P only submarines R and S D submarine P only submarine R only

1 marks

Answer: A

This question in 0972/11 May/June 2024

12 The diagram shows a frictionless piston inside a cylinder. The air inside the cylinder is heated. The piston moves in the direction shown. piston cylinder movement of piston heat Which statement about the air inside the cylinder is correct? A The temperature and volume increase at constant pressure. B The temperature and pressure increase at constant volume. C The temperature, volume and pressure all increase. D The volume and pressure increase at constant temperature.

1 marks

Answer: A

This question in 0972/11 May/June 2024

8 Four submarines are submerged. The density of fresh water is 1000 kg / m3 and the density of sea water is 1020 kg / m3. Which submarine experiences the greatest pressure due to the water? A B water surface water surface fresh water 100 m fresh water 120 m submarine submarine C D water surface water surface sea water 100 m sea water 120 m submarine submarine

1 marks

Answer: D

This question in 0972/12 May/June 2024

11 An artist makes four sculptures with circular bases and places them on sand. All the sculptures are of equal weight and volume. Which sculpture is least likely to sink into the sand? A B C D sand

1 marks

Answer: D

This question in 0972/11 Oct/Nov 2024

10 Which pair of changes, applied at the same time, always increases the pressure that a brick exerts on the ground? area of brick in weight of brick contact with ground A increase increase B increase decrease C decrease increase D decrease decrease

1 marks

Answer: B

This question in 0972/11 May/June 2025

14 A teacher has a gas in a sealed syringe with a movable plunger. gas plunger syringe The teacher slowly moves the plunger out of the syringe. The temperature of the gas remains constant. Which row explains what happens to the pressure of the gas in the syringe? pressure of gas explanation A decreases gas particles collide with the syringe wall less frequently B decreases gas particles collide with the syringe wall more frequently C increases gas particles collide with the syringe wall less frequently D increases gas particles collide with the syringe wall more frequently

1 marks

Answer: A

This question in 0972/11 May/June 2025

12 A fixed mass of gas at a constant temperature is trapped in a cylinder which has a movable piston. Which row states and explains what happens to the pressure of the gas in the cylinder when the volume of the gas increases? pressure explanation A decreases gas particles collide with the cylinder at a lower speed B decreases gas particles collide with the cylinder less frequently C increases gas particles collide with the cylinder at a higher speed D increases gas particles collide with the cylinder more frequently

1 marks

Answer: B

This question in 0972/12 May/June 2025