Scientific Principles PowerPoint 4 Quiz

Which principle involves heat transfer through electromagnetic waves?

• Conduction

• Convection

• Radiation

• Insulation

In which process does heat transfer occur without the movement of the medium?

• Conduction

• Convection

• Radiation

• Evaporation

What is the main method of heat transfer in liquids and gases?

• Conduction

• Convection

• Radiation

• Insulation

How does heat travel during conduction?

• Through electromagnetic waves

• From one molecule to the next

• Through convection currents

• By radiation

Which of the following is a good thermal conductor?

• Polystyrene

• Wood

• Copper

• Still air

What can be used as an insulator due to its poor thermal conductivity?

• Copper

• Aluminium

• Polystyrene

• Iron

Which of the following materials is likely to conduct heat the fastest?

• Brick

• Water

• Aluminium

• Wood

What happens to molecules during convection when they are heated?

• They contract and sink

• They expand and rise

• They remain stationary

• They dissolve

What is the main reason for insulating hot water pipes?

• To prevent freezing

• To maintain heat

• To increase flow rate

• To change color

What is the term for heat transfer via infrared light, which transfers heat from one body to another without heating the space in between?

• Conduction

• Convection

• Radiation

• Evaporation