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Chapter 17


Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.  RECORD YOUR ANSWER ON THE SCANTRON SHHET.
 

1. 
Weather associated with an anticyclone is generally
A.
cloudy but dry.
B.
unpredictable.
C.
wet and cloudy.
D.
dry and clear.
 

2. 
Thunderstorms form within
A.
high altocumulus clouds.
B.
high cirrocumulus clouds.
C.
large cumulonimbus clouds.
D.
low cirrus clouds.
 

3. 
A funnel-shaped cloud that touches Earth's surface is called a
A.
hurricane.
B.
cyclone.
C.
tornado.
D.
thunderhead.
 

4. 
To be classified as a hurricane, a tropical storm must have winds of at least
A.
75 kilometers/hour.
B.
100 kilometers/hour.
C.
119 kilometers/hour.
D.
139 kilometers/hour.
 

5. 
The eye of a hurricane
A.
has the highest winds.
B.
has dense clouds.
C.
produces the storm surge.
D.
is calm.
 

6. 
How does lake-effect snow occur?
A.
Warm, moist air blows over colder land and then over water.
B.
Warm, dry air blows over large lakes and then over land.
C.
Cold air blows over warm land and then over water.
D.
Cold air blows over large lakes and then over land.
 

7. 
One of the best places to seek protection during a tornado is
A.
in the attic.
B.
beside either the stove or the refrigerator.
C.
in the garage.
D.
in the basement of a well-built building.
 

8. 
Flooding is most often caused by
A.
fast-flowing rivers.
B.
tornadoes.
C.
melting snow and spring rains.
D.
snowstorms.
 

9. 
To protect yourself near flood waters, you should
A.
play near the edge where the water is less deep.
B.
hurry across the stream before it gets worse.
C.
ride your bike rather than walk it across flooded roads.
D.
move to higher ground.
 

10. 
Weather forecasting has improved recently because of
A.
fewer weather changes from year to year.
B.
more experienced weather forecasters.
C.
computer technology.
D.
television reporting.
 

11. 
People who study weather and try to predict it are called
A.
astronomers.
B.
climatologists.
C.
meteorologists.
D.
weather forecasters.
 

12. 
El Niño is a weather pattern that forms in the
A.
polar Pacific Ocean.
B.
tropical Pacific Ocean.
C.
tropical Atlantic Ocean.
D.
polar Atlantic Ocean.
 

13. 
An El Niño event typically occurs every
A.
year.
B.
1-4 years.
C.
2-7 years.
D.
7-10 years.
 

14. 
Isobars are lines on a map joining places that have the same
A.
wind speed.
B.
temperature.
C.
humidity.
D.
air pressure.
 

15. 
Small lines at the end of the shaft that represents wind direction on a weather map indicate
A.
temperature.
B.
wind speed.
C.
pressure.
D.
humidity.
 

16. 
On weather maps, a line with half circles indicates
A.
a hurricane.
B.
a cold front.
C.
a warm front.
D.
snow.
 

17. 
A cloud cover symbol that is 3/4 black and 1/4 white represents
A.
20-30 percent cloud cover.
B.
50-60 percent cloud cover.
C.
70-80 percent cloud cover.
D.
90-100 percent cloud cover.
 

18. 
Places shown on a weather map that have the same temperature are connected by
A.
thermolines.
B.
isobars.
C.
thermobars.
D.
isotherms.
 

Short Answer-Record your answers on a sheet of notebook paper.
 
 
ch_17_files/i0210000.jpg
 

19. 
What does A represent? In what direction is it moving?
 

20. 
What is B called? What does it connect?
 

21. 
What does C represent?
 

22. 
What does D represent? In what direction is it moving?
 

23. 
What does E represent?
 

24. 
What is F called? What does it connect?
 

25. 
Describe the temperature and humidity of air mass A.
 

26. 
Describe the temperature and humidity of air mass F.
 

27. 
Which air masses shown are likely to bring dry weather to the United States?
 

28. 
Classify each of the air masses shown as continental or maritime and as polar or tropical.
 

29. 
As air mass B passes over, is snow more likely at location W or location X? Explain your answer.
 



 
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