IS_Section Quiz_5.3_e

Conduction can take place between two objects not in contact.

• True

• False

Non-metals are usually poor conductors of heat.

• True

• False

Convection only takes place in solids, but not in liquids and gases.

• True

• False

Heat is transferred from the Sun to the Earth by radiation.

• True

• False

Light-coloured objects absorb less radiation than dark-coloured objects.

• True

• False

Conduction only takes place in an object.

• True

• False

Convection requires a medium to transfer heat.

• True

• False

Dark-coloured objects and light-coloured objects have the same ability to emit radiation.

• True

• False

Which of the following statements is/are correct?

(1) Heat is conducted from a high-temperature region to a low-temperature region.

(2) Heat is conducted from a low-temperature region to a high-temperature region.

(3) The abilities to conduct heat vary among different materials.

• A. (1) only

• B. (2) only

• C. (1) and (3) only

• D. (2) and (3) only

Which of the following combinations is correct?

• A. Good conductor of heat: Wood; Poor conductor of heat: Iron

• B. Good conductor of heat: Plastic; Poor conductor of heat: Glass

• C. Good conductor of heat: Water; Poor conductor of heat: Gold

• D. Good conductor of heat: Copper; Poor conductor of heat: Air