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

6 Three liquids P, Q and R have different densities and do not mix. The liquids are placed in a measuring cylinder and allowed to settle. A small block is then dropped into the measuring cylinder and comes to rest, as shown. R Q block P Which statement about the density of the block is correct? A It is equal to the density of Q. B It is greater than the density of P. C It is greater than the density of R. D It is less than the density of Q.

1 marks

Answer: C

This question in 0972/11 May/June 2018

7 The diagram shows some liquid in a measuring cylinder. The mass of the liquid is 16 g. 25 cm3 20 15 10 5 What is the density of the liquid? A 0.80 g / cm 3 B 1.25 g / cm 3 C 36 g / cm 3 D 320 g / cm 3

1 marks

Answer: A

This question in 0972/11 May/June 2018

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

21 A liquid is heated and it expands. How does this lead to the formation of a convection current? A The density of the heated liquid decreases. B The density of the heated liquid increases. C The mass of the heated liquid molecules decreases. D The mass of the heated liquid molecules increases.

1 marks

Answer: A

This question in 0972/11 May/June 2018

6 The diagrams show four solid blocks with their dimensions and masses. Which block has the greatest density? A area = 10 cm2 B area = 20 cm2 2.0 cm 2.0 cm mass = 14 g mass = 48 g C area = 10 cm2 D area = 20 cm2 2.0 cm 2.0 cm mass = 54 g mass = 68 g

1 marks

Answer: C

This question in 0972/11 May/June 2019

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

20 The metal surface of a kettle is hot. What happens to the cool air outside the kettle when it comes into contact with the hot kettle? A The density of the air decreases and the air falls. B The density of the air decreases and the air rises. C The density of the air increases and the air falls. D The density of the air increases and the air rises.

1 marks

Answer: B

This question in 0972/11 May/June 2019

5 The density of air is 1.2 kg / m3. A room has dimensions 5.0 m × 4.0 m × 3.0 m. What is the mass of the air in the room? A 0.02 kg B 0.10 kg C 50 kg D 72 kg

1 marks

Answer: D

This question in 0972/11 Oct/Nov 2019

6 The mass of a measuring cylinder is 190 g. 400 cm3 of liquid is put into the measuring cylinder. The total mass of the measuring cylinder and the liquid is 560 g. Four solid objects are lowered in turn into the liquid. The densities of the objects are shown. 1 0.40 g / cm3 2 0.90 g / cm3 3 1.2 g / cm3 4 2.7 g / cm3 Which objects will float in the liquid? A 1 only B 1 and 2 only C 1, 2 and 3 D 3 and 4 only

1 marks

Answer: B

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

18 The diagrams show four blocks of steel. The blocks are all drawn to the same scale. The same quantity of thermal energy is given to each block. Which block shows the greatest rise in temperature? A B C D

1 marks

Answer: A

This question in 0972/11 May/June 2020

20 Two freezers X and Y are identical except that one has a door opening at the front and the other has a door opening at the top. door freezer freezer door X Y Both doors are the same size and are opened for the same amount of time. Which freezer gains the least amount of thermal energy in this time and why? freezer gaining the reason least thermal energy A X cold air falls B X warm air falls C Y cold air falls D Y warm air falls

1 marks

Answer: C

This question in 0972/11 May/June 2020

6 Water has a density of 1000 kg / m3. A rectangular swimming pool has an average depth of 1.6 m. The length of the pool is 25 m. The width of the pool is 10 m. What is the mass of the water in the swimming pool? A 2.5 kg B 400 kg C 400 000 kg D 800 000 kg

1 marks

Answer: C

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

19 A room is heated by a radiator. The diagrams X and Y show two possible circulations of hot air, which heat the room. diagram X ceiling diagram Y ceiling radiator radiator floor floor Which diagram and reason explain the heating of the room by convection? diagram reason A X air density decreases when air is heated B X air density increases when air is heated C Y air density decreases when air is heated D Y air density increases when air is heated

1 marks

Answer: A

This question in 0972/12 May/June 2020

6 A metal ball is attached to a cork and is lowered into a measuring cylinder, pulling the cork into the water, as shown. cork 80 cm3 ball 56 cm3 48 cm3 water ball and cork ball fully submerged both ball and cork above the water but cork above the water fully submerged The mass of the cork is 4.8 g. What is the density of the cork? A 0.15 g / cm3 B 0.20 g / cm3 C 0.60 g / cm3 D 5.0 g / cm3

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2020

4 Which substance in the table has the lowest density? substance mass / g volume / cm3 A nylon 1.2 1.0 B cotton 1.5 1.0 C olive oil 1.8 2.0 D water 2.0 2.0

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2021

1 A lump of modelling clay is moved from a small measuring cylinder to a large measuring cylinder that has twice the diameter. water modelling clay small cylinder large cylinder The reading on the small measuring cylinder goes down by 20 cm3. By how much does the reading on the large cylinder go up? A 10 cm3 B 20 cm3 C 40 cm3 D 80 cm3

1 marks

Answer: B

This question in 0972/11 May/June 2022

5 A measuring cylinder contains 30 cm3 of a liquid. cm3 50 40 30 20 10 balance Some more of the liquid is added until the liquid level reaches the 50 cm3 mark. The reading on the balance increases by 30 g. What is the density of the liquid? A 0.60 g / cm3 B 0.67 g / cm3 C 1.5 g / cm3 D 1.7 g / cm3

1 marks

Answer: C

This question in 0972/11 May/June 2022

18 The diagram shows a convection current caused by a piece of ice placed in a beaker of water at room temperature. ice Q P Which row correctly compares the temperatures and densities at water points P and Q? temperature at P density at P A higher than at Q higher than at Q B higher than at Q lower than at Q C lower than at Q higher than at Q D lower than at Q lower than at Q

1 marks

Answer: C

This question in 0972/11 May/June 2022

1 A lump of modelling clay is moved from a small measuring cylinder to a large measuring cylinder that has twice the diameter. water modelling clay small cylinder large cylinder The reading on the small measuring cylinder goes down by 20 cm3. By how much does the reading on the large cylinder go up? A 10 cm3 B 20 cm3 C 40 cm3 D 80 cm3

1 marks

Answer: B

This question in 0972/12 May/June 2022

5 A measuring cylinder contains 30 cm3 of a liquid. cm3 50 40 30 20 10 balance Some more of the liquid is added until the liquid level reaches the 50 cm3 mark. The reading on the balance increases by 30 g. What is the density of the liquid? A 0.60 g / cm3 B 0.67 g / cm3 C 1.5 g / cm3 D 1.7 g / cm3

1 marks

Answer: C

This question in 0972/12 May/June 2022

6 A student determines the density of an irregularly shaped stone. The stone is slowly lowered into a measuring cylinder partly filled with water. measuring cylinder stone Which other apparatus does the student need to calculate the density of the irregularly shaped stone? A a balance B a thermometer C a metre rule D a stop-watch

1 marks

Answer: A

This question in 0972/11 May/June 2023

5 Which two quantities must be known to determine the density of a material? A mass and area B mass and volume C weight and area D weight and volume

1 marks

Answer: B

This question in 0972/12 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

5 A student has a bottle of cooking oil. She determines the density of the cooking oil. Which apparatus does she need? balance Minder” ruler thermometer A Jv J J Jv B JV v v x Cc Jv J x x D Jv x x x key J/ = needed X = not needed

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2023

16 The diagram shows the view of a room heated by a radiator. The arrowed line from X to Y is the path of the convection current in the air. ceiling X Y radiator floor Which row about the air temperature and the air density at X and at Y is correct? air temperature air density A higher at X higher at X B higher at X higher at Y C higher at Y higher at Y D higher at Y higher at X

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2023

3 A plastic bottle contains 750 cm3 of oil. The diagram shows the mass of the bottle being measured when it is full and then when it is empty. 650 g 50 g What is the density of the oil? A 0.80 g / cm3 B 0.93 g / cm3 C 1.1 g / cm3 D 1.3 g / cm3

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

5 A concrete building block has the dimensions shown. 29 cm 18 cm 12 cm The mass of the block is 15 000 g. What is the density of the block? A 43 g / cm3 B 2.4 g / cm3 C 0.42 g / cm3 D 0.023 g / cm3

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2024

12 A quantity of water is boiled to form the same mass of steam. Which row shows how the volume and density of the water change? volume density A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2024

16 A beaker of water is heated and thermal energy travels through the water by convection. What happens to the density of the water when it is heated and how does the water move? A The density decreases and the heated water moves downwards. B The density decreases and the heated water moves upwards. C The density increases and the heated water moves downwards. D The density increases and the heated water moves upwards.

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2024

5 The masses and volumes of four objects are shown. Which object floats in a liquid of density 1.4 g / cm3? mass of volume of object / g object / cm3 A 1.0 0.5 B 2.0 3.0 C 6.0 4.0 D 9.0 6.0

1 marks

Answer: B

This question in 0972/11 May/June 2025

2 Which piece of apparatus is used to determine the volume of an irregularly shaped solid? A balance B measuring cylinder C ruler D thermometer

1 marks

Answer: B

This question in 0972/12 May/June 2025

5 Four hollow glass balls, P, Q, R and S, each have a volume of 30 cm3. The mass of each ball is shown. ball mass / g P 15 Q 25 R 35 S 45 Which balls will float in a liquid of density 0.95 g / cm3? A P and Q B P only C R and S D S only

1 marks

Answer: A

This question in 0972/12 May/June 2025

13 Which quantity does not change when there is an increase in temperature? A the density of a steel block B the diameter of the hole in a metal nut C the length of an iron rod D the mass of a metal coin

1 marks

Answer: D

This question in 0972/12 May/June 2025

15 A liquid is heated and it expands. How does this lead to the formation of a convection current? A The density of the heated liquid decreases. B The density of the heated liquid increases. C The mass of the heated liquid particles decreases. D The mass of the heated liquid particles increases.

1 marks

Answer: A

This question in 0972/12 May/June 2025