Density — Paper 2 · IGCSE Physics 0625

5 The diagram shows a cuboid block made from a metal of density 2.5 g / cm3. 2.0 cm 10 cm 2.0 cm What is the mass of the block? A 8.0 g B 16 g C 50 g D 100 g

1 marks

Answer: D

This question in 0625/22 Feb/March 2016

19 A liquid is heated in a beaker. liquid heating The density of the liquid changes as its temperature increases. This causes energy to be transferred throughout the liquid. How does the density change and what is this energy transfer process? energy transfer density process A decreases conduction B decreases convection C increases conduction D increases convection

1 marks

Answer: B

This question in 0625/21 May/June 2016

5 The diagrams show an empty rectangular box, and the same box filled with liquid. The box has a mass of 60 g when empty. When filled with liquid, the total mass of the box and the liquid is 300 g. empty box box filled with liquid 60 g 300 g The density of the liquid is 1.2 g / cm3. What is the volume of the liquid in the box? A 50 cm3 B 200 cm3 C 250 cm3 D 300 cm3

1 marks

Answer: B

This question in 0625/21 Oct/Nov 2016

5 A student uses a measuring cylinder and a balance to find the density of oil. The diagram shows the arrangement used. empty measuring measuring cylinder containing cylinder volume V of oil oil m1 m2 g g Which calculation gives the density of the oil? ( 2 − ) V V m2 m m A B ( ) C D 1 m m − m V V 2 2 1

1 marks

Answer: D

This question in 0625/22 Oct/Nov 2016

5 The diagrams show an empty container, and the same container filled with liquid. The empty container has a mass of 120 g. When filled with the liquid, the total mass of the container and the liquid is 600 g. empty container container filled with liquid 120 g 600 g The volume of liquid in the container is 600 cm3. What is the density of the liquid? A 0.020 g / cm3 B 0.80 g / cm3 C 1.0 g / cm3 D 1.2 g / cm3

1 marks

Answer: B

This question in 0625/23 Oct/Nov 2016

5 A measuring cylinder containing only water is placed on an electronic balance. A small, irregularly shaped stone is now completely immersed in the water. The diagrams show the equipment before and after the stone is immersed. measuring cm3 cm3 cylinder 100 100 90 90 80 80 70 70 60 60 50 50 40 40 stone water 30 30 20 20 10 10 balance g g before the stone after the stone is immersed is immersed What is the density of the material of the stone? A 1.7 g / cm3 B 3.3 g / cm3 C 4.5 g / cm3 D 8.7 g / cm3

1 marks

Answer: C

This question in 0625/21 May/June 2017

5 The masses of a measuring cylinder before and after pouring some liquid into it are shown in the diagram. cm3 cm3 200 200 100 100 liquid mass = 80 g mass = 180 g What is the density of the liquid? 100 g / cm3 100 g / cm3 180 g / cm3 180 g / cm3 A B C D 120 140 120 140

1 marks

Answer: B

This question in 0625/22 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

5 A steel ball bearing has a mass of 24 g and a density of 8.0 g / cm3. It is lowered into a measuring cylinder containing 12 cm3 of water. What is the new water level in the cylinder? A 3.0 cm3 B 4.0 cm3 C 15 cm3 D 16 cm3

1 marks

Answer: C

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

19 Why does a balloon filled with hot air rise? A Cold air is less dense than hot air. B Cold air is more dense than hot air. C Heat rises. D The density of the balloon is greater than the density of the surrounding gas.

1 marks

Answer: B

This question in 0625/22 Oct/Nov 2017

19 Why is the heating coil of a domestic immersion heater placed at the bottom of the tank? A Cold water is less dense than hot water and therefore sinks. B Cold water is more dense than hot water and therefore rises. C Hot water is less dense than cold water and therefore rises. D Hot water is more dense than cold water and therefore sinks.

1 marks

Answer: C

This question in 0625/23 Oct/Nov 2017

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

5 A liquid has a volume of 0.040 m3 and a mass of 30 000 g. What is the density of the liquid? A 0.075 kg / m3 B 7.5 kg / m3 C 750 kg / m3 D 7500 kg / m3

1 marks

Answer: C

This question in 0625/21 Oct/Nov 2018

5 The diagram shows four blocks of different metals. Each block has a mass of 12 g. Which metal has the largest density? A B 1 cm 1 cm 2 cm 1 cm 2 cm 2 cm C D 1 cm 1 cm 2 cm 1 cm 3 cm 3 cm

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

19 Which statement about convection is not correct? A It enables water in a pan on a cooker to get evenly heated. B It happens in liquids and gases. C It means that heat rises. D It occurs because the density of a fluid decreases when it is heated.

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2018

25 A sheet of ice floats on water. A source of sound S is positioned at the edge of the ice sheet. Four microphones are placed equal distances from S. Which microphone detects the sound from S first? A air B D S ice water C

1 marks

Answer: B

This question in 0625/22 Oct/Nov 2018

5 A student carries out experiments to find the mass and the volume of four samples of rock. The graph shows the results. sample P sample Q 200 mass / g sample R sample S 100 0 0 50 100 volume / cm3 Which pair are samples of the same type of rock? A P and Q B P and S C R and Q D Q and S

1 marks

Answer: C

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

5 The mass of a full bottle of cooking oil is 1.30 kg. When exactly half of the oil has been used, the mass of the bottle plus the remaining oil is 0.90 kg. 1.30kg 0.90kg What is the mass of the empty bottle? A 0.40 kg B 0.50 kg C 0.65 kg D 0.80 kg

1 marks

Answer: B

This question in 0625/22 Feb/March 2019

6 A solid ball has a volume of 4.0 cm3. The density of the ball is 1.6 g / cm3. What is the mass of the ball? A 0.4 g B 2.5 g C 4.0 g D 6.4 g

1 marks

Answer: D

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

5 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 0625/21 May/June 2019

18 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 0625/21 May/June 2019

5 A metal has a density of 8.0 g / cm3. A solid cube of mass 1.0 kg is made from this metal. How long is each side of the cube? A 0.50 cm B 2.0 cm C 5.0 cm D 42 cm

1 marks

Answer: C

This question in 0625/22 May/June 2019

5 X, Y and Z are three regularly shaped solid objects. Their dimensions and masses are shown in the diagrams. object X object Y 2 cm 3 cm 5 cm 10 cm 4 cm 6 cm 200 g 200 g electronic object Z balance 1 cm 1 cm 25 cm 50 g Which objects have the same density? A X, Y and Z B X and Y only C X and Z only D Y and Z only

1 marks

Answer: C

This question in 0625/23 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

18 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 0625/23 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 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

5 The table gives the mass and the volume of three objects P, Q and R. object mass / g volume / cm3 P 23 36 Q 170 720 R 240 340 Which objects can float in a liquid of density 0.85 g / cm3? A P and Q only B P and R only C Q and R only D P, Q and R

1 marks

Answer: D

This question in 0625/22 Oct/Nov 2019

6 Four hollow glass spheres P, Q, R and S each have a mass of 72 g. Their volumes are given in the table. volume / cm3 P 55 Q 65 R 75 S 85 Which spheres sink in a liquid of density 0.9 g / cm3? A P, Q and R B Q, R and S C R and S only D S only

1 marks

Answer: A

This question in 0625/23 Oct/Nov 2019

6 A measuring cylinder contains 40 cm3 of water. A solid metal ball is dropped into the water and the water level rises to 56 cm3. The mass of the ball is 80 g. What is the density of the metal from which the ball is made? A 0.20 g / cm3 B 1.4 g / cm3 C 2.0 g / cm3 D 5.0 g / cm3

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

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 0625/21 May/June 2020

16 A solid is heated causing it to expand. What effect does this have on its mass and on its density? mass density A decreases decreases B decreases stays constant C stays constant decreases D stays constant stays constant

1 marks

Answer: C

This question in 0625/21 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 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

6 A rectangular gymnasium is 50 m long, 25 m wide and 8.0 m high. The density of air is 1.2 kg / m3. What is the best estimate of the mass of air in the gymnasium? A 0.00012 kg B 100 kg C 8300 kg D 12 000 kg

1 marks

Answer: D

This question in 0625/23 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 0625/21 Oct/Nov 2020

6 A rectangular metal block is 20 cm long. The cross-sectional area of the block is 25 cm2. The mass of the block is 4000 g. What is the density of the metal? A 0.13 g / cm3 B 0.32 g / cm3 C 8.0 g / cm3 D 2000 g / cm3

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2020

19 A scientist measures the air temperature at different heights from the floor in a cave. The results are recorded in the table. height / m temperature / C 0 10 10 11 20 13 30 14 40 16 Why does altering the height affect the temperature of the air? A The molecules in warm air have less energy than the molecules in cool air. B The molecules in cool air are further apart than the molecules in warm air. C Warm air is less dense than cool air. D Cool air rises above warm air.

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

5 A small bottle has a mass of 20 g when empty. The volume of the bottle is 10 cm3. When full of liquid, the total mass is 150 g. What is the density of the liquid? A 0.50 g / cm3 B 2.0 g / cm3 C 13 g / cm3 D 15 g / cm3

1 marks

Answer: C

This question in 0625/22 Feb/March 2021

5 A measuring cylinder contains 40 cm3 of water. A stone of mass 94 g is lowered into the water so that it is fully submerged as shown. cm3 100 90 80 90 70 60 80 50 40 70 30 20 10 What is the density of the stone? A 1.1 g / cm3 B 1.2 g / cm3 C 2.1 g / cm3 D 2.6 g / cm3

1 marks

Answer: D

This question in 0625/22 May/June 2021

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 0625/21 Oct/Nov 2021

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 0625/22 Oct/Nov 2021

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 0625/23 Oct/Nov 2021

5 A student carries out an experiment to find the density of a rock. measuring cylinder liquid rock 200 g balance 264 g Which two measurements does the student need to make to determine the density of the rock? measurement 1 measurement 2 A increase in mass increase in volume of liquid B final mass increase in depth of liquid C increase in mass increase in depth of liquid D final mass increase in volume of liquid

1 marks

Answer: A

This question in 0625/22 Feb/March 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 0625/21 May/June 2022

20 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 0625/21 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 0625/22 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 0625/23 May/June 2022

4 The diagram shows the dimensions of a solid rectangular block of metal of mass m. q p r Which expression is used to calculate the density of the metal? m A ( p  q ) m B ( p  q  r ) C m  p  q D m  p  q  r

1 marks

Answer: B

This question in 0625/21 Oct/Nov 2022

4 The diagram shows four pieces of laboratory apparatus. 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30 0.0g 30 20 20 10 10 balance measuring ruler stop-watch cylinder Which pieces of apparatus are used to find the density of a liquid? A balance and stop-watch B balance and measuring cylinder C measuring cylinder and ruler D stop-watch and ruler

1 marks

Answer: B

This question in 0625/22 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

4 The diagram shows four pieces of laboratory apparatus. 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30 0.0g 30 20 20 10 10 balance measuring ruler stop-watch cylinder Which pieces of apparatus are used to find the density of a liquid? A balance and stop-watch B balance and measuring cylinder C measuring cylinder and ruler D stop-watch and ruler

1 marks

Answer: B

This question in 0625/23 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

5 A rectangular swimming pool is 50 m long and 25 m wide. It contains water at a depth of 2 m. The density of the water is 1000 kg / m3. What is the mass of the water in the pool? A 2.5 kg B 2500 kg C 77 000 kg D 2 500 000 kg

1 marks

Answer: D

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

16 What happens when the temperature of a liquid increases? A The mass of the liquid increases, making the liquid less dense. B The mass of the liquid increases, making the liquid more dense. C The volume of the liquid increases, making the liquid less dense. D The volume of the liquid increases, making the liquid more dense.

1 marks

Answer: C

This question in 0625/22 Feb/March 2023

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 0625/21 May/June 2023

6 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 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

4 The table shows the mass and volume of three different liquids, X, Y and Z. liquid mass / g volume / cm3 X 120 200 Y 80 67 Z 100 120 The liquids are placed in the same container. The liquids do not mix. Which liquid is at the top of the container and which liquid is at the bottom? liquid at liquid at top bottom A X Y B X Z C Y X D Y Z

1 marks

Answer: A

This question in 0625/21 Oct/Nov 2023

15 A chef heats some water in a pan on a hotplate. The temperature of the water rises by 10 C in time t. She then puts the same volume of oil in an identical pan on the same hotplate. The specific heat capacity of water is 2.5 times that of oil and water is 1.1 times denser than oil. What is the time for the temperature of the oil to rise by 10 C? A 0.36t B 0.44t C 2.3t D 2.8t

1 marks

Answer: A

This question in 0625/21 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 0625/21 Oct/Nov 2023

4 A plastic ball has a mass of 4.0 g and a volume of 20 cm3. There is a crack in the ball’s surface. The ball is placed in a bath of water. Water leaks into the ball without changing the volume of the ball and eventually the ball sinks. The density of water = 1.0 g / cm3. Which mass of water has entered the ball when the top of the ball is first level with the water surface? A 5.0 g B 16 g C 20 g D 24 g

1 marks

Answer: B

This question in 0625/22 Oct/Nov 2023

4 The mass of air hitting the blades of a wind turbine each second is 1.5 × 104 kg. The speed of the air is 4.0 m / s. The density of air is 1.2 kg / m3. Which row gives the volume of the air hitting the blades each second and the kinetic energy of the air hitting the blades each second? volume of air kinetic energy each second / m3 each second / J A 13 000 72 000 B 13 000 120 000 C 18 000 72 000 D 18 000 120 000

1 marks

Answer: B

This question in 0625/23 Oct/Nov 2023

1 A student has a measuring cylinder containing water and also has a balance. Which of these could she use to find the volume of a small metal sphere? She has no other apparatus. A either the measuring cylinder containing water or the balance B the measuring cylinder containing water only C the balance only D neither the measuring cylinder nor the balance

1 marks

Answer: B

This question in 0625/22 Feb/March 2024

5 The table gives data about four liquids, W, X, Y and Z. liquid mass / g volume / cm3 W 10 10 X 20 15 Y 30 50 Z 40 50 None of the liquids mixes with any of the other liquids. All the liquids are put in the same container and settle to form four separate layers. Which statement is correct? A W forms the layer below X. B X forms the top layer. C Y forms the bottom layer. D Z forms the layer below Y.

1 marks

Answer: D

This question in 0625/22 Feb/March 2024

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

4 The mass of an object is 2.5 kg. The volume of the object is 480 cm3. What is the density of the object? A 5.2  10–3 g / cm3 B 5.2 g / cm3 C 190 g / cm3 D 1.2  103 g / cm3

1 marks

Answer: B

This question in 0625/21 May/June 2024

4 A sealed container of volume 2000 cm3 contains air at high pressure. The container is placed on a top-pan balance. The balance reads 200.00 g. All the air is removed by a vacuum pump and the balance reading changes to 196.00 g. What was the density of the pressurised air? A 0.00200 g / cm3 B 0.098 g / cm3 C 4.00 g / cm3 D 10.2 g / cm3

1 marks

Answer: A

This question in 0625/22 May/June 2024

5 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 0625/22 Oct/Nov 2024

4 An engineer researched the density of different liquids being used as coolants. density liquid kg / m 3 X 785 Y 1020 Z 1250 None of the liquids mix with water. Each liquid is poured, in turn, into a container of water. The density of water is 1000 kg / m3. Which liquids rise to the surface? A X only B Y and Z C Y only D Z only

1 marks

Answer: A

This question in 0625/23 Oct/Nov 2024

15 A solid is heated causing it to expand. Which effect does this have on its mass and on its density? mass density A decreases decreases B decreases stays constant C stays constant decreases D stays constant stays constant

1 marks

Answer: C

This question in 0625/23 Oct/Nov 2024

4 A girl has a gold necklace. Which apparatus does she need to find the density of the gold? balance "olinder” thermometer ruler A Jv Jv Jv Jv key B v v v x /¥ = needed Cc v v x x X = not needed D Jv x x x

1 marks

Answer: C

This question in 0625/21 May/June 2025

4 Diagram 1 shows a piece of flexible material that contains many pockets of air. Diagram 2 shows the same piece of flexible material after it has been compressed so that its volume decreases. diagram 1 diagram 2 (before compression) (after compression) What happens to the mass and to the weight of the flexible material when it is compressed? mass weight A increases increases B increases no change C no change increases D no change no change

1 marks

Answer: D

This question in 0625/22 May/June 2025

5 A student determines the density of copper. She has a rectangular block of copper. Which other apparatus does she need? balance stop-watch thermometer key J¥ = needed X = not needed

1 marks

Answer: C

This question in 0625/22 May/June 2025

5 Samples of three different liquids have equal masses. The volumes of the samples are 190 cm3, 200 cm3 and 235 cm3. The liquids are poured into a large measuring cylinder and the liquids form three separate layers because they do not mix. What are the readings on the measuring cylinder at the two boundaries between the samples? A 190 cm3 and 390 cm3 B 190 cm3 and 425 cm3 C 235 cm3 and 425 cm3 D 235 cm3 and 435 cm3

1 marks

Answer: A

This question in 0625/23 May/June 2025

4 The diagram shows one liquid floating on top of another liquid. liquid P liquid Q Which statement explains why liquid P floats on top of liquid Q? A The mass of liquid Q is greater than the mass of liquid P. B The mass of 1 cm3 of liquid Q is greater than the mass of 1 cm3 of liquid P. C The volume of liquid Q is greater than the volume of liquid P. D The volume of 1 g of liquid Q is greater than the volume of 1 g of liquid P.

1 marks

Answer: B

This question in 0625/21 Oct/Nov 2025

14 Which statement about convection is not correct? A It enables water in a pan on a cooker to get evenly heated. B It happens in liquids and gases. C It occurs because cooler liquids rise above warmer liquids. D It occurs because the density of a liquid decreases when it is heated.

1 marks

Answer: C

This question in 0625/21 Oct/Nov 2025

4 Students are asked to predict the order in which three liquids, P, Q and R, will float on each other. They are told that the liquids will not mix. The diagrams show how the density of liquid P is determined. measuring cylinder liquid P 20 cm3 electric balance 45.00 g 69.00 g The table shows the densities of Q and R. density liquid g / cm 3 Q 0.75 R 1.1 The liquids are poured gently into a tall beaker and allowed to settle. Which diagram shows the liquids settled in the correct order? A B C D P Q Q R R P R P Q R P Q

1 marks

Answer: C

This question in 0625/22 Oct/Nov 2025

5 Three different liquids are poured into a tall beaker. The liquids do not mix. The liquid densities are shown in the table. density liquid g cm / 3 P 1.8 Q 2.4 R 1.2 What is the correct order of the liquids from the top of the beaker to the bottom? A P  Q  R B Q  P  R C Q  R  P D R  P  Q

1 marks

Answer: D

This question in 0625/23 Oct/Nov 2025

16 A scientist measures the air temperature at different heights from the floor in a cave. The results are recorded in the table. height / m temperature / °C 0 10 10 11 20 13 30 14 40 16 Why does altering the height affect the temperature of the air? A The particles in warm air have less energy than the particles in cool air. B The particles in cool air are further apart than the particles in warm air. C Warm air is less dense than cool air. D Cool air rises above warm air.

1 marks

Answer: C

This question in 0625/23 Oct/Nov 2025