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Homework answers / question archive / University Of Arizona ATMO 170A Chapter 2 1)The transfer of heat from molecule to molecule within a substance is called
University Of Arizona
ATMO 170A
Chapter 2
1)The transfer of heat from molecule to molecule within a substance is called .
a. conduction
b. convection
c. radiation
d. latent energy
2. The heat energy released when water vapor changes to a liquid is called .
a. latent heat of evaporation
b. latent heat of sublimation
c. latent heat of vaporization
d. latent heat of condensation
3. Which of the following is the poorest conductor of heat?
a. still air
b. water
c. ice
d. soil
4. In the lower atmosphere, any air that rises will and cool.
a. expand
b. evaporate
c. compress
d. vaporize
5. A heat transfer process in the atmosphere that depends upon the movement of air is .
a. conduction
b. reflection
c. convection
d. radiation
6. The wavelength of radiation is proportional to the energy carried per wave.
a. directly
b. not
c. slightly
d. inversely
7. Electromagnetic radiation with wavelengths between 0.4 and 0.7 micrometers is called .
a. ultraviolet light
b. visible light
c. infrared light
d. microwaves
8. The earth's radiation is often referred to as radiation, while the sun's radiation is often referred to as radiation.
a. shortwave; longwave
b. shortwave; shortwave
c. longwave; shortwave
d. longwave; longwave
9. The earth emits radiation with greatest intensity at .
a. infrared wavelengths
b. radio wavelengths
c. visible wavelengths
d. ultraviolet wavelengths
10. The atmospheric greenhouse effect is due primarily to the fact that .
a. oxygen and ozone absorb ultraviolet radiation
b. nitrogen and oxygen transmit visible radiation
c. cloud formation releases latent heat energy
d. carbon dioxide and water vapor absorb infrared radiation
11. Without the atmospheric greenhouse effect, the average surface temperature of the earth would be .
a. higher than at present
b. lower than at present
c. the same as it is now
d. much more variable than it is now
12. Although water vapor accounts for about 60% of the atmospheric greenhouse effect, it is the increase of in the atmosphere that appears to be the main cause of global warming.
a. carbon monoxide
b. ozone
c. carbon dioxide
d. argon
13. The earth's surface receives about twice as much energy from the atmosphere than from the sun as a result of .
a. the release of latent heat during condensation
b. conduction of heat upward from the surface
c. convection
d. absorbed infrared energy radiated back to earth
e. direct absorption of sunlight by the atmosphere
14. An object that radiates more energy than it absorbs will .
a. become colder
b. become warmer
c. maintain the same temperature
d. reach radiative equilibrium
15. During the summer months at the North Pole, the sun does not set for .
a. 2 months
b. 24 hours
c. 6 months
d. 4 months
16. Seasons on earth are regulated by .
a. only the length of daylight hours
b. both the length of daylight hours and the angle sunlight strikes the earth's surface
c. only the angle sunlight strikes the earth's surface
d. only the earth's nearness to the sun
17. On which date would the sun's rays be closest to being perpendicular to the earth's surface in the middle latitudes of the Northern Hemisphere?
a. March 21
b. June 21
c. September 22
d. July 21
18. The most important reason why summers in the Southern Hemisphere are cooler than summers in the Northern Hemisphere is that
a. the Earth is 5 million km from the sun during the Southern Hemisphere summer
b. a greater percentage of the Southern Hemisphere is covered by water
c. the annual cycle of solar output is a minimum during the Southern Hemisphere summer
d. the Southern Hemisphere is cloudier and stormier during its summer
19. Microwave radiation has a longer wavelength and carries more energy per wave than visible light.
a. True
b. False
20. When an object emits and absorbs energy at equal rates, its temperature increases.
a. True
b. False
21. The Southern Hemisphere has warmer summers and colder winters than the Northern Hemisphere.
a. True
b. False
22. The earth comes is closer to the sun in July than January.
a. True
b. False
23. A degree Celsius is bigger than a degree Fahrenheit.
a. True
b. False
24. The length of daylight decreases between Christmas and New Year's Day in Tucson.
a. True
b. False
25. Air is an excellent conductor of heat.
a. True
b. False
26. The process of evaporation releases sensible heat into the environment
a. True
b. False
27. An object with a high albedo appears brighter than an object with a low albedo
a. True
b. False
28. Clouds are poor absorbers and poor emitters of infrared radiation
a. True
b. False
29. On the average, each year the Earth-atmosphere system emits to space just as much energy as it absorbs from the sun
a. True
b. False
30. Only selective absorbers in the atmosphere emit radiation
a. True
b. False
31. The earth's average surface temperature is higher than the earth's radiative equilibrium temperature
a. True
b. False
32. On the average, about 30% of all the solar radiation that strikes the earth is reflected by to space
a. True
b. False
33. Everytime a cloud forms, it warms the atmosphere.
a. True
b. False
34. As an object warms, the wavelength at which the most radiation is emitted by the object shortens.
a. True
b. False
