Chapter 6
1. The subtropical high pressure regions are centered at approximately __________ degrees north and south latitude.
a. 5
b. 30
c. 45
d. 60
2. In the northern hemisphere the wind circulation in a low is:
a. Counterclockwise, spiraling inward
b. Clockwise, spiraling inward
c. Clockwise, spiraling outward
d. Clockwise, spiraling inward and outward
e. Counterclockwise, spiraling outward
3. Lines used on maps to connect points of equal air pressure are called:
a. Isohyets
b. Isorones
c. Isotherms
d. Isobars
4. A major pressure system characterized by subsidence is the:
a. Equatorial low
b. Subtropical high
c. Trade winds
e. Isosoles
d. Westerlies
5. Closely spaced isobars on a map indicate:
a. Strong pressure gradient
b. Northerly winds
c. Winds of low velocity
d. Weak breezes
6. Where is the Coriolis Effect the largest?
a. At the Equator
b. At the Tropic of Capricorn and Cancer
c. At the North Pole
d. At 45 degrees latitude in each hemisphere
7. Which of the following is NOT true of winds?
a. A cyclone is a converging wind system
b. They move from regions of high to low pressure
c. Windward refers to the direction from which a wind comes
d. They have an apparent deflection to the left in the northern hemisphere
8. In an anticyclone, the winds _________ at the surface and __________ in the upper atmosphere.
a. Converge, converge
b. Converge, diverge
c. Diverge, converge
d. Diverge, diverge
9. The amount of pressure change that occurs over a specific distance is called the:
a. Pressure force
b. Coriolis force
c. Coriolis effect
d. Pressure gradient
10. The side of something that faces the direction from which the wind is coming is called the __________ side.
a. Leeward
b. Prevailing
c. Windward
d. Open
11. Air pressure __________ with elevation.
a. Varies irregularly
b. Increases
c. Decreases
d. Is constant
True/False
12. The Polar Highs are dynamically induced.
13. Dynamic causes of horizontal variation in air pressure are related to the rotation of Earth.
14. A geostrophic (upper air) wind is not influenced by surface friction.
Matching (wind, advection, leeward, equator, pole)
15. __________ refers to the direction the wind is blowing.
16. __________ is the horizontal movement of air in response to differences in pressure.
17. The Coriolis effect does not exist at the __________.
1. The westerlies have their origin in the:
a. Polar highs
b. Subtropical highs
c. Equatorial lows
d. Subpolar lows
2. The replacement of warmer surface water by colder waters from below is referred to as __________.
a. Drifting
b. Circulating
c. Rechanging
d. Upwelling
3. The monsoon winds in summer:
a. Move from the oceans over the land
b. Occur only on mid-latitude west coasts
c. Flow from land toward the oceans
d. Are a main feature of the world-wide zonal pattern of circulation
4. The zone of low pressure and calms located near the equator is referred to as the:
a. Horse latitudes
b. Doldrums
c. Easterlies
d. Westerlies
5. Which of the following exhibits a diurnal circulation pattern?
a. Land breeze-sea breeze
b. Monsoon
c. Southern oscillation
d. Rossby wave
6. The direction of land and sea breezes is:
a. From land by night and day
b. Toward sea by night and day
c. Toward land by night
d. From land by night
True/False
7. Global circulation systems are essential to the maintenance of Earth's energy balance.
8. El Ni¤o events appear to be getting stronger and occurring more frequently.
9. The phenomenon of monsoon winds and their seasonal shifting can be fully explained by the differential heating of
land and water.
10. The planetary wind system is a response to the global pressure system.
11. An El Ni¤o event is most likely to begin in July or August.
Matching (trade; westerlies)
12. The __________ winds are also known as the tropical easterlies.
13. In general, the mid-latitudes are influenced by the __________ wind belts.
1. b
2. a
3. d
4. b
5. a
6. c
7. d
8. c
9. d
10. c
11. c
12. f
13. t
14. t
15. leeward
16. advection
17. equator
1. b
2. c
3. a
4. b
5. a
6. d
7. t
8. t
9. t
10. t
11. f
12. trade
13. westerlies