Chapter 17 Test

Which of the following results when there is a temperature difference between two objects?

• one object will always shave more heat than the other object
• both objects will gain more and more heat
• heat is transferred from one object to the other
• the temperature of both objects increases

Which of the following is NOT a factor that controls temperature?

• longitude
• cloud cover
• ocean currents
• altitude

What is the relationship between altitude and temperature?

• as altitude increases, temperature increases
• as altitude increases, temperature decreases
• there is no significant relationship between altitude and temperature
• the relationship depends on the season

Clouds absorb outgoing radiation emitted by Earth and reradiate a portion of it back to the surface during

• nighttime
• daytime
• summer
• times of heavy rainfall

The average kinetic energy of the atoms or molecules in a particular substance is known as....

• temperature
• conduction
• heat
• convection

Because of convection, the warmest air in a room

• spreads out in all directions
• sinks toward the floor
• transfers heat to the walls
• rises toward the ceiling

Which of the following is an example of radiation?

• a metal spoon becomes warm after being set in a pot of boiling water
• warm water rises because it is less dens than cool water
• pancake batter cooks quickly after being spooned onto a hot griddle
• our atmosphere is constantly being heated by the sun

According to the electromagnetic spectrum...

• long-wave radiation occupies a smaller percentage than short-wave radiation
• gramma rays and X-rays have long wavelengths
• visible light waves have wavelengths of less than 1 micrometer
• ultraviolet light waves have some of the longest wavelengths

Which of the following is NOT true about radiation?

• radiation cannot travle through a vacuum
• the hottest radiation bodies produce the shortest wavelengths
• ALL objects emit radiant energy
• objects that absorb radiation will emit radiation equally as well

The blue color of the sky is the result of

• conduction
• scattering
• reflection
• absorption