Section #: 12.2
Weather Systems
Practice Test
1.
What causes the Coriolis effect?
a.
the prevailing westerlies
b.
Earth's tilted axis
c.
seasons
d.
Earth's rotation
Hint
2.
What is the convergence of the trade winds from both hemispheres called?
a.
the prevailing westerlies
b.
the jet stream
c.
the intertropical convergence zone
d.
the horse latitudes
Hint
3.
A __________ is a narrow region that separates two air masses of different densities.
a.
front
b.
trade wind
c.
jet stream
d.
disturbance
Hint
4.
In __________, warm air displaces cold air and it develops a gradual frontal slope.
a.
a warm front
b.
a stationary front
c.
a cold front
d.
an occluded front
Hint
5.
What wind system occurs at 30 degrees north and south of the equator?
a.
the trade winds
b.
the prevailing westerlies
c.
the jet stream
d.
the polar easterlies
Hint
6.
Narrow bands of fast, high-altitude westerly winds are called __________.
a.
the ITCZ
b.
polar easterlies
c.
prevailing westerlies
d.
jet streams
Hint
7.
High-pressure systems usually are associated with __________ and low-pressure systems are associated with __________.
a.
clouds and precipitation, fair weather
b.
the jet stream, fronts
c.
fair weather, clouds and precipitation
d.
fair weather, fair weather
Hint
8.
In the figure, what type of front is coming through Canada and into Colorado?
Click here for figure
a.
warm
b.
cold
c.
stationary
d.
occluded
Hint
9.
The data in the table shows weather conditions before and after a front passed. What type of front passed through?
Mon
Tue
Wed
Thurs
Fri
Sat
Sun
Average temperature (°C)
23.3
22.2
22.2
15.6
16.7
16.7
17.8
Rainfall (cm)
0
0
3.31
0
0
0
0
Relative humidity
40‰
60‰
100‰
80‰
60‰
50‰
40‰
Air pressure (mb)
1000
998
-
-
-
-
-
a.
warm
b.
cold
c.
occluded
d.
stationary
Hint
10.
In __________, warm air is squeezed upward between two cold air masses.
a.
a warm front
b.
a cold front
c.
an occluded front
d.
a stationary front
Hint
