Sc 912 P 10 4

10.4 Radiation

Open Ended

Open Ended

Open Ended

Open Ended

Open Ended

Multiple Choice

The hotter an object the more infrared radiation is given off (T/F).

• True

• False

Multiple Choice

Which type of surface is the best absorber of infra-red rays?

• black and rough

• black and smooth

• white and rough

• white and smooth

Multiple Choice

All of the following are good conductors of heat EXCEPT

• Copper

• Iron

• Plastic

• Aluminum

Multiple Choice

A material that reduces the flow of heat is a(n)

• conductor

• insulator

• metal

• radiator

Multiple Choice

The type of heat transfer that creates currents in water is called ________.

• conduction

• convection

• radiation

Multiple Choice

The kind of heat transfer that travels through space in electromagnetic waves is ______________________.

• convection

• radiation

• conduction

Multiple Choice

Which best describes the process of convection?

• Convection is the primary way  heat travels  through rays.
• Convection is the primary way heat travels  through metals.
• Convection is the primary way heat travels  through appliances.
• Convection is the primary way heat travels  through liquids and gasses.

Multiple Choice

Near the ceiling of a room the air is warmer. The warm air rises because of ________.

• conduction

• convection

• radiation

Multiple Choice

The handle of a metal spoon warms up when it is placed in a hot bowl of soup because of ________.

• convection

• conduction

• radiation

Multiple Choice

In heat transfer, heat always flows from the _______________ substance to the _______________ substance.

• hotter to colder

• colder to hotter

• hotter to hotter

• colder to colder