Name: 
 

Ch. 20 Weather Patterns Review



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

A cold, dry air mass that moves over warm, tropical waters will likely become ____.
a.
colder and drier
c.
colder and wetter
b.
warmer and drier
d.
warmer and wetter
 

 2. 

What type of front forms when the surface position of the front does not move?
a.
warm
b.
cold
c.
stationary
d.
occluded
 

 3. 

Which of the following is considered to be a boundary between two different air masses?
a.
warm front
c.
both warm front and cold front
b.
cold front
d.
neither warm front nor cold front
 

 4. 

Along a front, which type of air is always forced upwards?
a.
cooler, denser air
c.
the driest air
b.
warmer, less dense air
d.
the wettest air
 

 5. 

Which two properties characterize an air mass?
a.
temperature and location
c.
temperature and moisture
b.
temperature and pressure
d.
moisture and pressure
 

 6. 

The greatest number of thunderstorms occur in the ____.
a.
middle latitudes
c.
mountains
b.
tropics
d.
high latitudes
 

 7. 

A rotating column of air is called a(n) ____.
a.
hurricane
c.
vortex
b.
anticyclone
d.
cumulonimbus cloud
 

 8. 

Hurricanes are classified according to intensity using the ____.
a.
Richter scale
c.
Saffir-Simpson scale
b.
Doppler scale
d.
Fujita scale
 

 9. 

Which of the following would likely have the greatest range of pressure?
a.
tornado
c.
hurricane
b.
middle-latitude cyclone
d.
All have the same pressure.
 

 10. 

Tornadoes are most frequent from ____.
a.
January to March
c.
October to December
b.
April to June
d.
July to August
 



 
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