Thermal Energy Transfer Quiz

What is the SI unit of temperature?

• Celsius (°C)

• Kelvin (K)

• Rankine (°R)

• Fahrenheit (°F)

Which process involves the transfer of thermal energy through direct contact?

• Insulation

• Conduction

• Convection

• Radiation

What happens to particles in a substance when it is heated?

• They gain kinetic energy

• They stop moving

• They lose energy

• They move closer together

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Which of the following is a good thermal conductor?

• Plastic

• Copper

• Air

• Wood

What is the main effect of thermal expansion?

• Increase in density

• Decrease in volume

• Increase in volume

• No effect on volume

Which method of heat transfer does not require a medium?

• Insulation

• Convection

• Conduction

• Radiation

What is the primary reason for using a double-glazed window?

• To make it look better

• To increase sound

• To allow more light in

• To reduce heat loss

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In which state of matter does conduction occur fastest?

• Solid

• Liquid

• Plasma

• Gas

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What is the effect of dark-colored surfaces on thermal radiation?

• They are poor emitters

• They are good absorbers

• They reflect heat

• They do not absorb heat

What is a common application of convection in everyday life?

• All of the above

• Boiling water in a kettle

• Heating a room with a radiator

• Using a microwave

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