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Friday Weather Test

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

 1. 

The air above the ____ rises because it has low density and low pressure.
a.
north pole
c.
south pole
b.
arctic circle
d.
equator
 

 2. 

The boundary between cold and warm air masses is called a ____.
a.
climate
c.
flood
b.
front
d.
storm
 

 3. 

Fog is a ____ cloud that forms near the ground.
a.
stratus
c.
cirrus
b.
cumulus
d.
cirrocumulus
 

 4. 

   Which diagram best represents the movement of air according to the surface temperature conditions shown?  
a.
  mc004-1.jpg
c.
  mc004-3.jpg
b.
  mc004-2.jpg
d.
  mc004-4.jpg
 

 5. 

What causes an area of high air pressure?
a.
warm air
c.
cold air
b.
strong winds
 

 6. 

The movement of air from an area of high pressure to an area of low pressure is
a.
the coriolis effect
c.
weather
b.
the wind
 

 7. 

What causes the uneven heating of the Earth?
a.
the Earth’s rotation
c.
the shape of the Earth
b.
the currents in the oceans
 

 8. 

   Wind results when two air masses collide that have a difference in  
a.
  latitude.  
c.
  size.  
b.
  altitude.  
d.
 air pressure.  
 

 9. 

During the day, warm air over the land rises and cool air moves in from the sea.  This creates a
a.
a sea breeze
c.
a tsunami
b.
a hurricane
d.
land breeze
 

 10. 

Masses of puffy, white, cotton ball clouds, often with flat bases, that form when air currents rise are called ____ clouds.
a.
cumulus
c.
cirrus
b.
nimbus
d.
stratus
 

 11. 

   Large, dark clouds that produce thunderstorms are called  
a.
  altocumulus clouds.  
c.
  cirrostratus clouds.  
b.
  cumulonimbus clouds.  
d.
  stratocumulus clouds.  
 

 12. 

   An air mass forms over the Gulf of Mexico and moves northeast across Georgia. What weather conditions are likely to prevail in Georgia?  
a.
  cool and humid  
c.
  cool and dry  
b.
  warm and dry  
d.
  warm and humid  
 

 13. 

The ____ is caused by the Earth's rotation.
a.
Coriolis effect
c.
jet stream
b.
land breeze
d.
sea breeze
 

 14. 

The most powerful severe storm is the ____.
a.
tornado
c.
thunderstorm
b.
front
d.
hurricane
 

 15. 

____ can be produced by thunderstorms.
a.
Stationary fronts
c.
Tornadoes
b.
Tsunamis
d.
Volcanoes
 

 16. 

  On a July day in Millen, large cumulonimbus clouds are forming. It is very warm and humid and the barometer is falling. The weather prediction might be  
a.
  a hurricane.  
c.
  fog.  
b.
  thunderstorms
d.
  a tornado.  
 

 17. 

The condition of the air around the Earth at a particular time and place
a.
is caused by the doldrums
c.
weather
b.
climate
 

 18. 

   Air pressure can be measured using  
a.
barometer
c.
wind vane
b.
a thermometer
d.
altimeter
 

 19. 

Sea and land breezes are caused because ____.
a.
air moves more easily over water than over land
b.
the land heats and cools more slowly than the water
c.
the land heats and cools more quickly than the water
d.
air moves more easily over land than over water
 

 20. 

High, thin, white, feathery clouds containing ice crystals are usually associated with fair weather, but they can also indicate approaching storms. These clouds are called ____ clouds.
a.
nimbus
c.
cirrus
b.
stratus
d.
cumulus
 

 21. 

The ____ is the source of all energy in our atmosphere.
a.
Coriolis effect
c.
Moon
b.
Sun
d.
water cycle
 

 22. 

A violent, whirling wind that moves in a narrow path over land is a  ____.
a.
tornado
c.
hurricane
b.
thunderstorm
d.
front
 

 23. 

   An air mass gets its temperature and humidity from  
a.
  the latitude at which it forms.  
c.
  the land or water over which it forms.  
b.
  changes in the upper atmosphere.  
d.
  the air masses that surround it
 

 24. 

How does the air get warm?
a.
the sun shines on it
c.
mostly by the Sun’s radiation
b.
by touching the warm surface of the Earth
d.
reflected sunlight
 

 25. 

Warm air rises because
a.
is less dense than cold air
c.
it has less energy than cold air
b.
it contains helium
d.
is more dense than cold air
 



 
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