8I Heating and Cooling Multiple Choice Test

Chapter 3 Multiple choice test

Chapter 3 Energy and fuels

SoW ref 8l Heating and cooling

Name Class Teacher

There is only one correct answer to each question. Tick () the box next to the answer that you think is right.

1 Which answer shows the correct units for energy and temperature?

Energy units Temperature

A degrees Celsius joules

B joules degrees Celsius

C joules watts

D watts degrees Celsius

A B C D

2 Which answer shows the correct temperatures?

Room temp. Body temp. Iced water Boiling water

A 0 °C 100 °C 0 °C 20 °C

B 20 °C 37 °C 0 °C 100 °C

C 37 °C 20 °C 20 °C 100 °C

D 100 °C 20 °C 0 °C 37 °C

A B C D

3 When a hammer is picked up by the head (metal end) it feels cold. This is becauseA metals are colder than other materialsB metals are good conductors and take heat energy from the handC metals react with the skin to feel coldD everything you touch feels cold

4 At a burger bar a metal rod is used to test the temperature inside cooked food. (The food is then thrown away). What is the proper name for this metal rod?A alcohol thermometer B bi-metallic stripC pH meter D temperature probe

Hodder Science Assessment Pack © 2003 Hodder & Stoughton Educational


5 Which answer best explains what happens to particles as their temperature rises?A they break up B they decomposeC they fuse together D they move faster

6 When solids are heated they can expand slightly. This is becauseA the gaps between the particles gets biggerB more particles are made by the energyC the particles swell up as they absorb energyD the particles vibrate more and move apart

Questions 7–9 refer to the drawing of the house below.

7 Which energy saving improvement prevents heat loss by convection?A cavity wall insulation B double glazingC draught excluders D porch

8 Which two energy saving improvements prevent heat loss by conduction?A double glazing and porchB draught excluders and double glazingC draught excluders and porchD loft insulation and cavity wall insulation

9 Which answer best describes how cavity wall insulation works?A it acts like a blanket and keeps the house warmB it contains pockets of trapped air that are poor conductorsC it reflects back heat radiationD it stops warm air escaping between the bricks



10 Which graph represents a pure liquid turning into a solid as it cools?A B

C D

11 Which answer describes how these energy transfer methods work?

Conduction Convection Radiation

Aenergy passed to next particle

fluid becomes less dense when heated

electromagnetic waves

B electromagnetic wavesenergy passed to next particle

fluid becomes less dense when heated

Cenergy passed to next particle

electromagnetic wavesfluid becomes less dense when heated

D electromagnetic wavesfluid becomes less dense when heated

energy passed to next particle

A B C D

12 How does the heat of the sun reach the earth’s atmosphere?A by conduction, convection and radiationB by convection and radiationC by conduction and convectionD by radiation only


8I Heating and Cooling Multiple Choice Test

Documents

Transcript of 8I Heating and Cooling Multiple Choice Test