Ch05TBAns - CHAPTER 5 AIR PRESSURE _ MULTIPLE CHOICE...

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CHAPTER 5 AIR PRESSURE __________________________________________________________ MULTIPLE CHOICE QUESTIONS 1. The magnitude of pressure exerted by the gas molecules composing air depends on a. the mass of the air molecules. b. the pull of gravity. c. the kinetic energy of air molecules. d. All of the above are correct. e. None of the above is correct. *d. All of the above are correct. 2. The average air pressure at sea level is a. 14.7 lb per square inch. b. 1013.25 mb. c. 101,325 Pascals. d. All of these are correct. e. None of these is correct. *d. All of these are correct. 3. The usual world-wide range in sea-level air pressure is ______ mb. a. less than 20 b. less than 2 c. less than 100 d. more than 100 e. more than 1000 *c. less than 100 4. The type of barometer that is used to measure altitude: a. mercury b. aneroid c. thermal d. radiosonde e. psychrometer *b. aneroid 5. A barometer can be used to predict the weather by a. reading the legends on the face of the barometer.
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b. keeping track of the air pressure tendency. c. using the instrument as an altimeter. d. None of the above is correct. *b. keeping track of the air pressure tendency. 6. An air-pressure altimeter is actually a(n) ______ barometer. a. mercury b. aneroid *b. aneroid 7. The top of the atmosphere is at an average altitude of a. 80 km. b. 100 km. c. 5 km. d. 10 km. e. None of these is correct. *e. None of these is correct. 8. The pressure of the atmosphere is greatest a. at the tropopause. b. at the Earth's surface. c. at sea level. d. at the mesopause. e. at the stratopause. *c. at sea level. 9. Between the tropopause and stratopause, the air pressure ______ with increasing altitude. a. increases b. decreases c. does not change *b. decreases 10. What fraction of the atmosphere's mass is below an aircraft flying at the 400 mb level? a. 0.6 b. 0.4 c. 0.2 d. 0.3 e. 0.1 *a. 0.6
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11. What fraction of the atmosphere is below the 500 mb level? a. 0.6 b. 0.8 c. 0.5 d. 0.3 e. 0.2. *c. 0.5 12. Within the thermosphere, the temperature is ______ and heat energy is ______. a. low. ............. low b. high. ............. high c. low. .............. high d. high. ............. low *d. high. ............. low 13. When air pressure readings at Denver (the "mile-high city") are adjusted to sea level, air pressure readings are a. increased. b. decreased. c. not changed. *a. increased. 14. Adjusting barometer readings to sea-level removes the influence of ______ on air pressure. a.
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This note was uploaded on 09/12/2008 for the course GEOS 220 taught by Professor Mountain during the Spring '08 term at University of Louisville.

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Ch05TBAns - CHAPTER 5 AIR PRESSURE _ MULTIPLE CHOICE...

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