Thermal properties and temperature — Paper 2 · IGCSE Science - Combined 0653

32 A container with fixed volume is filled with a substance. The atoms in the substance are far apart and move in straight lines until they strike something. The substance is now heated without changing state. Which row gives the state of the substance and the effect of heating on its atoms? effect on atoms state of substance when heated A gas expand B gas move more quickly C liquid expand D liquid move more quickly

1 marks

Answer: B

This question in 0653/22 Feb/March 2017

32 Two cylinders contain the same type of gas. In which case must the gas in one cylinder be at a higher temperature than the gas in the other cylinder? A In one cylinder the gas molecules are moving faster. B In one cylinder the gas occupies a smaller volume. C In one cylinder there is a greater number of gas molecules. D In one cylinder there is a greater spacing between the gas molecules.

1 marks

Answer: A

This question in 0653/22 May/June 2017

33 A solid is heated and it melts. The liquid that is produced is then heated and it boils. What happens to the temperature of the solid while it is melting, and what happens to the temperature of the liquid while it is boiling? temperature of solid temperature of liquid A increases increases B increases remains constant C remains constant increases D remains constant remains constant

1 marks

Answer: D

This question in 0653/23 May/June 2017

32 The molecules of a substance are far apart and moving at high speeds in straight lines. The forces between them are negligible. Two changes are now made to the substance. change 1 The average speed of the molecules is reduced but they remain far apart. change 2 The molecules move much closer together. There are much stronger forces between them, but they can change places with each other. What is the effect of each change? change 1 change 2 A temperature decreases gas to liquid B temperature decreases liquid to solid C temperature increases gas to liquid D temperature increases liquid to solid

1 marks

Answer: A

This question in 0653/23 Oct/Nov 2017

33 The molecules of a substance are far apart and move at high speed in straight lines until they hit something. The temperature of the substance is changed and this causes the molecules to move more quickly. What is the state of the substance, and how has its temperature changed? state of how temperature substance has changed A gas decreased B gas increased C liquid decreased D liquid increased

1 marks

Answer: B

This question in 0653/22 Feb/March 2018

33 A liquid evaporates when molecules leave its surface. Which molecules leave the surface, and what happens to the temperature of the remaining liquid? A The more energetic molecules leave and the temperature falls. B The more energetic molecules leave and the temperature rises. C The less energetic molecules leave and the temperature falls. D The less energetic molecules leave and the temperature rises.

1 marks

Answer: A

This question in 0653/21 Oct/Nov 2018

31 Which statements about liquids and gases are correct? 1 Molecules in gases are further apart than molecules in liquids. 2 Molecules in liquids and gases are arranged randomly. 3 When a liquid evaporates, the temperature of the remaining liquid decreases. A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0653/22 Oct/Nov 2021

32 Water in a beaker evaporates quickly. Which statements about the evaporation of the water from the beaker are correct? 1 Evaporation happens at all temperatures between 0 C and 100 C. 2 The more-energetic water molecules escape from the surface of the water. 3 The temperature of the water remaining in the beaker decreases. A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0653/23 Oct/Nov 2021

32 A mechanic cannot remove a large steel nut from a steel bolt because it is too tight. bolt nut What does the mechanic do to help remove the nut? A cool the nut and heat the bolt B heat the bolt only C heat the nut and the bolt through the same temperature rise D heat the nut only

1 marks

Answer: D

This question in 0653/21 May/June 2022

33 A mechanic cannot remove a large steel nut from a steel bolt because it is too tight. bolt nut What does the mechanic do to help remove the nut? A cool the nut and heat the bolt B heat the bolt only C heat the nut and the bolt through the same temperature rise D heat the nut only

1 marks

Answer: D

This question in 0653/22 May/June 2022

32 A mechanic cannot remove a large steel nut from a steel bolt because it is too tight. bolt nut What does the mechanic do to help remove the nut? A cool the nut and heat the bolt B heat the bolt only C heat the nut and the bolt through the same temperature rise D heat the nut only

1 marks

Answer: D

This question in 0653/23 May/June 2022

31 Which statement about water is correct? A It boils at 0 C and melts at 100 C. B It boils at 0 C and melts at –100 C. C It boils at 100 C and melts at –100 C. D It boils at 100 C and melts at 0 C.

1 marks

Answer: D

This question in 0653/22 Oct/Nov 2022

33 Cold water evaporates as molecules leave it. Which molecules leave the water and from which part of the water do they leave? molecules that where they leave the water leave from A less-energetic the surface only B less-energetic throughout the water C more-energetic the surface only D more-energetic throughout the water

1 marks

Answer: C

This question in 0653/22 Feb/March 2024

34 An aluminium cap is screwed onto the top of an aluminium bottle. cap bottle The cap is difficult to unscrew. Which action makes removing the cap easier? A cooling only the cap in cold water B heating only the bottle in hot water C placing both the bottle and the cap in a freezer D placing both the bottle and the cap in a hot oven

1 marks

Answer: D

This question in 0653/23 Oct/Nov 2024

31 An engineer wants to fit a steel washer onto a steel rod. The rod is slightly too big to fit into the hole in the washer. steel steel rod washer Which statement describes how the engineer fits the washer onto the rod? A Cool the washer and push it over the rod. B Cool the washer and the rod to the same temperature and then push them together. C Heat the rod and then push it in the hole. D Heat the washer and push it over the rod.

1 marks

Answer: D

This question in 0653/23 Oct/Nov 2025