Transfer of thermal energy — Paper 1 · IGCSE Science - Combined 0653

32 The diagram shows a cooling unit in a refrigerator. cooling unit Why is the cooling unit placed at the top? A Cold air falls and warm air is displaced upwards. B Cold air is a bad conductor so heat is not conducted into the refrigerator. C Cold air is a good conductor so heat is conducted out of the refrigerator. D Cold air stops at the top and so prevents convection.

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2005

33 At the end of a long race, a runner is wrapped in a thin, plastic blanket that has a shiny, metallic surface. Which type of heat loss is the shiny surface intended to reduce? A conduction B convection C evaporation D radiation

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2005

33 Two plastic cups are placed one inside the other. Hot water is poured into the inner cup and a lid is put on top as shown. lid small spacer small air gap hot water bench Which statement is correct? A Heat loss by radiation is prevented by the small air gap. B No heat passes through the sides of either cup. C The bench is heated by convection from the bottom of the outer cup. D The lid is used to reduce heat loss by convection.

1 marks

Answer: D

This question in 0653/11 May/June 2006

33 Which line in the table is correct about conduction and convection? conduction convection A can happen in a solid can happen in a solid B can happen in a solid only happens in fluids C only happens in fluids can happen in a solid D only happens in fluids only happens in fluids

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2006

31 Meat can be cooked by placing it below, but not touching, a heating element. heating element meat Which process transfers thermal energy from the heating element to the meat? A conduction B convection C insulation D radiation

1 marks

Answer: D

This question in 0653/11 May/June 2007

32 The diagram shows a refrigerator. The cooling unit is placed at the top. The cooling unit cools the air near it. cooling unit What happens to the density of this air as it cools and how does it move? density of the air movement of the air A decreases moves down B decreases stays where it is C increases moves down D increases stays where it is

1 marks

Answer: C

This question in 0653/11 May/June 2007

35 Which statement refers to convection? A It does not involve energy transfer. B It is the transfer of heat energy without the movement of particles. C It only occurs in liquids or gases. D It only occurs in solids.

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2007

34 A heater is placed in a room. Which diagram shows the movement of air as the room is heated? A B C D

1 marks

Answer: A

This question in 0653/11 May/June 2008

35 Rays from the Sun pass through a prism and a spectrum is produced on a screen. screen narrow slit P rays from red the Sun violet A thermometer placed at P shows a large temperature rise. Which type of radiation causes this? A infra-red B microwave C ultra-violet D visible light

1 marks

Answer: A

This question in 0653/11 May/June 2008

35 A white plastic lid is placed on a plastic cup used for a hot drink. lid hot drink This would have no effect on the loss of heat by A conduction. B convection. C evaporation. D radiation.

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2008

33 A rod is made up of copper and wood joined together. After the rod is heated at the join in the centre for about a minute, where would the lowest temperature be? B C A D wood copper

1 marks

Answer: A

This question in 0653/11 May/June 2009

34 A hot water tank is fitted with two identical heaters P and Q. Heater P is two thirds of the way up the tank and heater Q is at the very bottom. The tank is full of cold water. hot water out heater P cold water in heater Q When only heater Q is switched on, it takes a very long time to heat the tank of water to the required temperature of 60 °C. What happens to the tank of cold water if only heater P is switched on? A All the water reaches 60 °C in less time than before. B All the water reaches 60 °C in the same time as before. C The bottom two thirds of the water reaches 60 °C in two thirds of the original time D The top one third of the water reaches 60 °C in one third of the original time.

1 marks

Answer: D

This question in 0653/11 May/June 2009

37 There is a vacuum between the double walls of a vacuum flask. Which types of heat transfer are reduced by the vacuum? A conduction and convection only B conduction and radiation only C convection and radiation only D conduction, convection and radiation

1 marks

Answer: A

This question in 0653/11 May/June 2010

29 There is a vacuum between the double walls of a vacuum flask. Which types of heat transfer are reduced by the vacuum? A conduction and convection only B conduction and radiation only C convection and radiation only D conduction, convection and radiation

1 marks

Answer: A

This question in 0653/12 May/June 2010

29 There is a vacuum between the double walls of a vacuum flask. Which types of heat transfer are reduced by the vacuum? A conduction and convection only B conduction and radiation only C convection and radiation only D conduction, convection and radiation

1 marks

Answer: A

This question in 0653/13 May/June 2010

36 A camper sits beside a fire and quickly begins to feel warm. He pushes the end of a metal rod into the fire and after a while his hand feels the rod getting warm. Which heat transfers are taking place? heat transfer from heat transfer from fire through the air fire through the rod A conduction convection B conduction radiation C radiation conduction D radiation convection

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2010

38 The Sun heats the Earth by electromagnetic radiation. Which region of the electromagnetic spectrum is responsible for most of this heating? A microwave B infra-red C ultraviolet D X-ray

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2010

36 A camper sits beside a fire and quickly begins to feel warm. He pushes the end of a metal rod into the fire and after a while his hand feels the rod getting warm. Which heat transfers are taking place? heat transfer from heat transfer from fire through the air fire through the rod A conduction convection B conduction radiation C radiation conduction D radiation convection

1 marks

Answer: C

This question in 0653/12 Oct/Nov 2010

37 The Sun heats the Earth by electromagnetic radiation. Which region of the electromagnetic spectrum is responsible for most of this heating? A microwave B infra-red C ultraviolet D X-ray

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2010

33 A camper sits beside a fire and quickly begins to feel warm. He pushes the end of a metal rod into the fire and after a while his hand feels the rod getting warm. Which heat transfers are taking place? heat transfer from heat transfer from fire through the air fire through the rod A conduction convection B conduction radiation C radiation conduction D radiation convection

1 marks

Answer: C

This question in 0653/13 Oct/Nov 2010

33 A man warms himself by a fire. Which method of heat transfer supplies the most heat energy to him? A conduction through the air B convection by moving air C evaporation by moving water vapour D infra-red radiation

1 marks

Answer: D

This question in 0653/11 May/June 2011

33 A man warms himself by a fire. Which method of heat transfer supplies the most heat energy to him? A conduction through the air B convection by moving air C evaporation by moving water vapour D infra-red radiation

1 marks

Answer: D

This question in 0653/12 May/June 2011

36 When flying, some birds use warm air currents to gain height. What is the cause of these currents? A conduction B convection C evaporation D radiation

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2011

33 When flying, some birds use warm air currents to gain height. What is the cause of these currents? A conduction B convection C evaporation D radiation

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2011

33 When flying, some birds use warm air currents to gain height. What is the cause of these currents? A conduction B convection C evaporation D radiation

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2011

32 Hot drinks may be bought in cups with a plastic lid. What is the effect of the lid on heat transfer? A It mainly reduces conduction. B It mainly reduces convection. C It mainly reduces radiation. D It reduces conduction, convection and radiation equally.

1 marks

This question in 0653/11 May/June 2012

32 In which state(s) of matter can convection occur? in a solid in a liquid in a gas A no no yes B no yes yes C yes no no D yes yes no

1 marks

Answer: B

This question in 0653/12 May/June 2012

32 In which state(s) of matter can convection occur? in a solid in a liquid in a gas A no no yes B no yes yes C yes no no D yes yes no

1 marks

Answer: B

This question in 0653/13 May/June 2012

33 On a summer’s day, hot air rises above hot roofs. What is the name of this process? A concentration B condensation C conduction D convection

1 marks

Answer: D

This question in 0653/12 May/June 2013

32 The International Space Station orbits the Earth in the vacuum above the atmosphere. The electrical systems in the Space Station produce heat. How is this heat transferred from the external surfaces of the Space Station into space? A conduction only B convection only C radiation only D conduction, convection and radiation

1 marks

Answer: C

This question in 0653/13 May/June 2013

33 The diagrams show four identical pieces of ice that are heated in test-tubes of water. All four burners provide heat at the same rate. In which test-tube does the ice take the longest time to melt? A B ice water water ice wrapped in lead wire C D ice water water ice wrapped in lead wire

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2013

33 The diagrams show four identical pieces of ice that are heated in test-tubes of water. All four burners provide heat at the same rate. In which test-tube does the ice take the longest time to melt? A B ice water water ice wrapped in lead wire C D ice water water ice wrapped in lead wire

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2013

33 The diagrams show four identical pieces of ice that are heated in test-tubes of water. All four burners provide heat at the same rate. In which test-tube does the ice take the longest time to melt? A B ice water water ice wrapped in lead wire C D ice water water ice wrapped in lead wire

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2013

33 A solar panel is used to heat water. The hot water is then stored in a water tank. Water stored in the water tank is returned to the solar panel for further heating when the water cools. There is no pump to move the hot water to the water tank and the cooler water back to the panel. Which arrangement enables the hot water from the solar panel to move freely to the water tank and the cooler water to return to the solar panel? A B ABOVE ABOVE water water tank tank solar solar panel panel BELOW BELOW C D ABOVE ABOVE solar solar panel panel water water BELOW tank tank BELOW

1 marks

Answer: B

This question in 0653/11 May/June 2014

33 Diners sit at a table outside a café on a cold evening. A heater above the table warms the diners as they eat. heater Which row shows how thermal (heat) energy from the heater reaches the diners? conduction convection radiation A no no yes B no yes yes C yes no yes D yes yes no

1 marks

Answer: A

This question in 0653/12 May/June 2014

32 A solar panel is used to heat water. The hot water is then stored in a water tank. Water stored in the water tank is returned to the solar panel for further heating when the water cools. There is no pump to move the hot water to the water tank and the cooler water back to the panel. Which arrangement enables the hot water from the solar panel to move freely to the water tank and the cooler water to return to the solar panel? A B ABOVE ABOVE water water tank tank solar solar panel panel BELOW BELOW C D ABOVE ABOVE solar solar panel panel water water BELOW tank tank BELOW

1 marks

Answer: B

This question in 0653/13 May/June 2014

33 An electric heater is placed inside a metal box which has one side open. The diagram shows four possible positions of the box. The heater is switched on for several minutes. In which position does the box become the hottest? A B C D above above above above below heater below below heater below box box

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2014

14 A sweet potato is cut into pieces and cooked. In which pan does the potato cook most quickly? A B oil at 150 °C oil at 150 °C C D oil at 100 °C oil at 100 °C

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2014

33 An electric heater is placed inside a metal box which has one side open. The diagram shows four possible positions of the box. The heater is switched on for several minutes. In which position does the box become the hottest? A B C D above above above above below heater below below heater below box box

1 marks

Answer: D

This question in 0653/12 Oct/Nov 2014

33 An electric heater is placed inside a metal box which has one side open. The diagram shows four possible positions of the box. The heater is switched on for several minutes. In which position does the box become the hottest? A B C D above above above above below heater below below heater below box box

1 marks

Answer: D

This question in 0653/13 Oct/Nov 2014

33 Which row is correct? conduction of heat convection of heat A can happen in a solid can happen in a solid B can happen in a solid only happens in liquids and gases C only happens in liquids and gases can happen in a solid D only happens in liquids and gases only happens in liquids and gases

1 marks

Answer: B

This question in 0653/11 May/June 2015

36 A filament lamp is used in a zoo to keep young animals warm. reflector What are the main types of wave given out by the lamp? A visible light and infra-red B visible light and microwaves C visible light and radio waves D visible light and X-rays

1 marks

Answer: A

This question in 0653/11 May/June 2015

33 Which row is correct? conduction of heat convection of heat A can happen in a solid can happen in a solid B can happen in a solid only happens in liquids and gases C only happens in liquids and gases can happen in a solid D only happens in liquids and gases only happens in liquids and gases

1 marks

Answer: B

This question in 0653/12 May/June 2015

33 Which row is correct? conduction of heat convection of heat A can happen in a solid can happen in a solid B can happen in a solid only happens in liquids and gases C only happens in liquids and gases can happen in a solid D only happens in liquids and gases only happens in liquids and gases

1 marks

Answer: B

This question in 0653/13 May/June 2015

32 Which energy change takes place when a block of wood slows down as it slides across a rough horizontal table? A chemical energy to kinetic energy B gravitational energy to kinetic energy C gravitational energy to thermal energy D kinetic energy to thermal energy

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2015

35 Thermometer X is held above an ice cube and thermometer Y is held an equal distance below the ice cube. After several minutes, the reading on one thermometer changes. The ice cube has not melted. thermometer X ice cube thermometer Y The reading of which thermometer changes, and why? thermometer reason A X cool air rises from the ice cube B X warm air rises from the ice cube C Y cool air falls from the ice cube D Y warm air falls from the ice cube

1 marks

Answer: C

This question in 0653/11 Oct/Nov 2015

34 An electric kettle contains a metal heating element. water heating element What are the main processes by which heat energy is transferred from the element to the water, and throughout the water? heat transfer process element to water throughout water A conduction convection B conduction radiation C convection radiation D radiation conduction

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2015

34 On a cold night, two children sit next to a camp fire to warm their hands. Their hands are the same distance from the fire. Child 1 holds his hands over the fire and child 2 holds her hands in front of the fire. child 1’s hands child 2’s hands How does the heat from the fire reach each child’s hands? child 1 child 2 A convection only radiation only B convection and radiation radiation only C radiation only convection and radiation D radiation only convection only

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2015

33 The diagram shows a heater in a room. room heater What happens to the air as it is heated by the heater? A Its density decreases and it falls. B Its density decreases and it rises. C Its density increases and it falls. D Its density increases and it rises.

1 marks

Answer: B

This question in 0653/11 May/June 2016

33 A hot, solid metal block is placed in a vacuum. Its temperature decreases. By which method is energy transferred through the vacuum? A conduction B convection C evaporation D radiation

1 marks

Answer: D

This question in 0653/12 May/June 2016

33 Convection is one method by which energy can be transferred thermally through a substance. In which state(s) can convection occur? A liquids and gases only B liquids only C solids and gases only D solids, liquids and gases

1 marks

Answer: A

This question in 0653/13 May/June 2016

33 The diagram shows a vacuum flask containing a hot liquid in a cold room. X and Y are points on the inside surfaces of the walls of the flask. cold room X Y hot liquid vacuum How is energy transferred through the vacuum between X and Y? A by conduction and convection B by conduction only C by radiation and convection D by radiation only

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2016

33 Water in a beaker is heated by an electric heater in the position shown. Which diagram shows the convection current formed? A B water electric heater C D water electric heater

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2016

33 A man is in a cold room one metre away from a heater. The heater is switched on and the man feels warmer almost immediately. room heater How is thermal energy transferred from the heater to the man so quickly? A by conduction only B by convection only C by radiation only D by conduction, convection and radiation

1 marks

Answer: C

This question in 0653/13 Oct/Nov 2016

33 In which states of matter is convection the main heat transfer process? A gases and solids only B liquids and gases only C solids and liquids only D solids, liquids and gases

1 marks

Answer: B

This question in 0653/12 Feb/March 2017

33 Four identical metal tanks in a room each contain the same amount of water. The water is at the same temperature as the room. Two of the tanks are insulated, and two of the tanks are not insulated. A cooling unit is placed in each of the tanks, in the position shown. In which tank does all the water become cool the most quickly? A B C D insulation cooling water cooling water unit unit water water

1 marks

Answer: C

This question in 0653/11 May/June 2017

33 On a cold night, a person stands near a campfire. He holds his hands out towards the fire. His hands are heated by the fire. hands campfire Which process is responsible for transferring thermal energy from the fire to his hands? A conduction B convection C evaporation D radiation

1 marks

Answer: D

This question in 0653/12 May/June 2017

33 On a cold night, a person stands near a campfire. He holds his hands out towards the fire. His hands are heated by the fire. hands campfire Which process is responsible for transferring thermal energy from the fire to his hands? A conduction B convection C evaporation D radiation

1 marks

Answer: D

This question in 0653/13 May/June 2017

34 A double-glazed window consists of two panes of glass with a vacuum between them. The vacuum reduces the amount of thermal energy transferred through the window. vacuum glass glass Which row shows how much thermal energy is transferred through the vacuum by conduction, by convection and by radiation? conduction convection radiation A none none some B none some some C some none none D some some none

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2017

33 The diagram shows a heater above a thermometer. The thermometer bulb is in the position shown. heater air thermometer thermometer bulb Which row shows how the heat energy from the heater reaches the thermometer bulb? conduction convection radiation A no no yes B no yes no C no yes yes D yes yes no

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2017

33 The diagram shows an air-conditioning unit on the wall of a room. The unit draws in warm air from the room and releases cold air into the room. air-conditioning unit What happens to the cold air and what is the reason? cold air reason A falls it is less dense than warm air B falls it is more dense than warm air C rises it is less dense than warm air D rises it is more dense than warm air

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2017

34 A student makes two statements about infra-red radiation. 1 It is electromagnetic radiation. 2 It transfers thermal energy through a vacuum. Which of these statements are correct? A 1 only B 1 and 2 C 2 only D neither 1 nor 2

1 marks

Answer: B

This question in 0653/12 Feb/March 2018

33 On a summer’s day, hot air rises above hot roofs. What is the name of this process? A concentration B condensation C conduction D convection

1 marks

Answer: D

This question in 0653/11 May/June 2018

33 On a summer’s day, hot air rises above hot roofs. What is the name of this process? A concentration B condensation C conduction D convection

1 marks

Answer: D

This question in 0653/12 May/June 2018

33 On a summer’s day, hot air rises above hot roofs. What is the name of this process? A concentration B condensation C conduction D convection

1 marks

Answer: D

This question in 0653/13 May/June 2018

33 Convection is a process by which thermal energy is transferred from one place to another. Where can convection take place? A in a gas and in a vacuum B in a liquid and in a gas C in a liquid and in a solid D in a solid and in a vacuum

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2018

31 Which row gives thermal properties of air and aluminium? air aluminium A a bad thermal conductor a bad thermal conductor B a bad thermal conductor a good thermal conductor C a good thermal conductor a bad thermal conductor D a good thermal conductor a good thermal conductor

1 marks

Answer: B

This question in 0653/12 Feb/March 2019

28 Which labelled part of the electromagnetic spectrum is often involved in thermal energy transfer by radiation? radio gamma A B C D waves rays visible light

1 marks

Answer: B

This question in 0653/11 May/June 2019

34 The diagram shows a vacuum flask containing a hot liquid in a cold room. X and Y are points on the inside surfaces of the walls of the flask. cold room X Y hot liquid vacuum How is thermal energy transferred through the vacuum between X and Y? A by conduction and convection B by conduction only C by radiation and convection D by radiation only

1 marks

Answer: D

This question in 0653/11 May/June 2019

35 The diagram shows a vacuum flask containing a hot liquid in a cold room. X and Y are points on the inside surfaces of the walls of the flask. cold room X Y hot liquid vacuum How is thermal energy transferred through the vacuum between X and Y? A by conduction and convection B by conduction only C by radiation and convection D by radiation only

1 marks

Answer: D

This question in 0653/12 May/June 2019

33 The diagram shows a vacuum flask containing a hot liquid in a cold room. X and Y are points on the inside surfaces of the walls of the flask. cold room X Y hot liquid vacuum How is thermal energy transferred through the vacuum between X and Y? A by conduction and convection B by conduction only C by radiation and convection D by radiation only

1 marks

Answer: D

This question in 0653/13 May/June 2019

34 A metal pan containing water is heated on a hot stove. Energy is transferred thermally from the stove to the water. How is the energy transferred through the pan and then throughout the water? through the pan throughout the water A conduction conduction B conduction convection C convection conduction D convection convection

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2019

34 In diagram 1, a candle heats air and the heated air causes a decoration to spin. Diagram 2 shows the Earth being warmed due to heat produced by the Sun. diagram 1 diagram 2 spinning decoration Sun Earth candle What is the main method of heat transfer involved in each case? candle to decoration Sun to Earth A convection convection B convection radiation C radiation convection D radiation radiation

1 marks

Answer: B

This question in 0653/11 May/June 2020

34 In which states of matter can convection occur? in a solid in a liquid in a gas A no no yes B no yes yes C yes no no D yes yes no

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2020

32 In which states of matter can convection occur? in a solid in a liquid in a gas A no no yes B no yes yes C yes no no D yes yes no

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2020

34 In which states of matter can convection occur? in a solid in a liquid in a gas A no no yes B no yes yes C yes no no D yes yes no

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2020

33 How is thermal energy transferred from the Sun to the Earth through the vacuum of space? A by conduction, convection and radiation B by conduction only C by convection only D by radiation only

1 marks

Answer: D

This question in 0653/12 Feb/March 2021

34 Which material is a good conductor of heat? A copper B glass C plastic D wood

1 marks

Answer: A

This question in 0653/12 May/June 2021

34 Energy is transferred from the Sun to the Earth through the vacuum of space. Which method of energy transfer is involved? A conduction B convection C evaporation D radiation

1 marks

Answer: D

This question in 0653/13 May/June 2021

34 A student cooks a potato in a fire. The student holds the potato using a metal rod. potato metal rod Which transfer of thermal energy is caused mainly by radiation? A from the fire to the air above the fire B from the fire to the student’s face C from the inside of the potato to the student’s hand D from the outside of the potato to the inside of the potato

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2021

34 Thermometer X is held above an ice cube and thermometer Y is held an equal distance below the ice cube. After several minutes, the reading on one thermometer changes. The ice cube does not melt. thermometer X ice cube thermometer Y The reading of which thermometer changes, and why? thermometer reason A X cool air rises from the ice cube B X warm air rises from the ice cube C Y cool air falls from the ice cube D Y warm air falls from the ice cube

1 marks

Answer: C

This question in 0653/12 Feb/March 2022

34 A tank is full of water. The water at the bottom of the tank is heated. Eventually all the water in the tank becomes hot. What is the main method of energy transfer in the water? A conduction B convection C evaporation D radiation

1 marks

Answer: B

This question in 0653/13 May/June 2022

34 An electric heater is placed inside a metal box which has one side open. The diagrams show four possible positions of the box. The heater is switched on for several minutes. In which position does the box become the hottest? A B C D above above above above below heater below below heater below box box

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2022

34 An electric heater is placed inside a metal box which has one side open. The diagrams show four possible positions of the box. The heater is switched on for several minutes. In which position does the box become the hottest? A B C D above above above above below heater below below heater below box box

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2022

34 An electric heater is placed inside a metal box which has one side open. The diagrams show four possible positions of the box. The heater is switched on for several minutes. In which position does the box become the hottest? A B C D above above above above below heater below below heater below box box

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2022

34 A girl holds a thick glass beaker and pours hot water into it. There is a noticeable delay before she feels the thermal energy from the water reaching her hand. Which statement explains this delay? A Glass is a bad thermal conductor. B Glass is a good thermal conductor. C Water is a bad thermal conductor. D Water is a good thermal conductor.

1 marks

Answer: A

This question in 0653/12 Feb/March 2023

35 In which states of matter can convection occur? in a solid in a liquid in a gas A no no yes B no yes yes C yes no no D yes yes no

1 marks

Answer: B

This question in 0653/12 Feb/March 2023

35 Which substance is the best conductor of thermal energy? A iron B rubber C water D wood

1 marks

Answer: A

This question in 0653/11 May/June 2023

35 The diagram shows four rods made of different metals: brass, copper, iron and silver. The rods have identical dimensions and all start at the same temperature. A metal ball is fixed by wax to one end of each rod at points P, Q, R and S. The other end of each rod is heated by a flame at X. P Q brass copper X flame silver iron S R Thermal energy travels along each rod until the wax melts and the metal ball falls. The ball on the silver rod falls first. How can this be explained? A The rate of conduction of thermal energy is greatest in silver. B The rate of conduction of thermal energy is smallest in silver. C The rate of convection of thermal energy is greatest in silver. D The rate of convection of thermal energy is smallest in silver.

1 marks

Answer: A

This question in 0653/11 Oct/Nov 2023

33 A student puts an object made of metal and another object made of plastic in the same freezer for several days. The student removes the two objects from the freezer. When the student touches the objects, the metal one feels colder than the plastic one. Why is this? A The metal conducts heat quickly away from the hand. B The metal is at a lower temperature than the plastic. C The plastic conducts heat quickly into the hand. D The plastic has a lower melting point than the metal.

1 marks

Answer: A

This question in 0653/12 Oct/Nov 2023

33 A student puts an object made of metal and another object made of plastic in the same freezer for several days. The student removes the two objects from the freezer. When the student touches the objects, the metal one feels colder than the plastic one. Why is this? A The metal conducts heat quickly away from the hand. B The metal is at a lower temperature than the plastic. C The plastic conducts heat quickly into the hand. D The plastic has a lower melting point than the metal.

1 marks

Answer: A

This question in 0653/13 Oct/Nov 2023

33 Thermal energy passes through a vacuum. Which process is involved? A conduction B convection C evaporation D radiation

1 marks

Answer: D

This question in 0653/12 Feb/March 2024

35 Energy is transferred from the Sun to the Earth through the vacuum of space. Which method of energy transfer is involved? A conduction B convection C evaporation D radiation

1 marks

Answer: D

This question in 0653/11 May/June 2024

36 Energy is transferred from the Sun through the vacuum of space to all the planets in the Solar System. How is the energy transferred? A by conduction, convection and radiation B by conduction only C by convection only D by radiation only

1 marks

Answer: D

This question in 0653/12 May/June 2024

35 Which statement explains why ice cubes floating at the top of warm water cause all of the water to cool? A Convection causes cold water at the top to sink. B Convection causes the water around the ice cubes to freeze. C Ice cubes are good thermal insulators. D Ice cubes are good emitters of thermal radiation.

1 marks

Answer: A

This question in 0653/13 May/June 2024

35 A gas is trapped in a container. The gas is heated from below. What is the main method of thermal energy transfer in the gas? A conduction B convection C evaporation D radiation

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2024

33 Energy is transferred from a hot object by thermal radiation. Which row shows the name of this radiation and whether the radiation is electromagnetic? name of radiation electromagnetic A gamma yes B gamma no C infrared yes D infrared no

1 marks

Answer: C

This question in 0653/12 Feb/March 2025

36 A water tank is filled with cold water. There is a heater at the bottom of the tank. The heater is switched on. Hot water rises to the top of the tank. What is the name of this process? A conduction B convection C evaporation D radiation

1 marks

Answer: B

This question in 0653/12 Feb/March 2025

32 The shiny metal handlebars of a bicycle have black plastic hand grips. black plastic hand grips shiny metal handlebars On a cold day, the shiny metal handlebars feel colder than the black plastic hand grips. Which statement explains why they feel different? A Metal is a better thermal conductor than plastic. B Plastic is a better thermal conductor than metal. C The black plastic hand grips are better emitters of radiation than the shiny metal handlebars. D The shiny metal handlebars are better emitters of radiation than the black plastic hand grips.

1 marks

Answer: A

This question in 0653/11 May/June 2025

33 How is thermal energy transferred by convection in a liquid? A by the loss of more energetic particles from the surface of the liquid B by a flow of particles of the liquid C by electromagnetic waves in the liquid D by a vibration of particles of the liquid

1 marks

Answer: B

This question in 0653/11 May/June 2025

31 Which row shows a good thermal conductor and a thermal insulator? good thermal thermal conductor insulator A copper air B copper aluminium C water air D water aluminium

1 marks

Answer: A

This question in 0653/12 May/June 2025

32 The diagram shows a hand above a candle flame. What is the main method by which thermal energy is transferred from the flame to the hand? A conduction B convection C evaporation D radiation

1 marks

Answer: B

This question in 0653/13 May/June 2025

33 What is the main region of the electromagnetic spectrum involved in thermal energy transfer from the Sun to the Earth? A gamma B infrared C microwave D X-ray

1 marks

Answer: B

This question in 0653/13 May/June 2025

32 Which materials are both bad thermal conductors? A copper and iron B plastic and aluminium C rubber and gold D wood and plastic

1 marks

Answer: D

This question in 0653/11 Oct/Nov 2025

33 In which states of matter does convection occur? A liquid only B liquid and gas C solid and gas D solid and liquid

1 marks

Answer: B

This question in 0653/11 Oct/Nov 2025

32 Convection is a process by which thermal energy is transferred from one place to another. Which statement describes where convection takes place? A in a gas and in a vacuum B in a liquid and in a gas C in a liquid and in a solid D in a solid and in a vacuum

1 marks

Answer: B

This question in 0653/12 Oct/Nov 2025

33 A metal container is filled with water and placed in direct sunlight. The outside surfaces of the container are painted. Which type of paint results in the smallest rate of increase in temperature of the water? A dull black B dull white C shiny black D shiny white

1 marks

Answer: D

This question in 0653/12 Oct/Nov 2025

32 Convection is a process by which thermal energy is transferred from one place to another. Which statement describes where convection takes place? A in a gas and in a vacuum B in a liquid and in a gas C in a liquid and in a solid D in a solid and in a vacuum

1 marks

Answer: B

This question in 0653/13 Oct/Nov 2025

33 A metal container is filled with water and placed in direct sunlight. The outside surfaces of the container are painted. Which type of paint results in the smallest rate of increase in temperature of the water? A dull black B dull white C shiny black D shiny white

1 marks

Answer: D

This question in 0653/13 Oct/Nov 2025