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Currents Practice



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

 1. 

The Gulf Stream is what kind of current?
a.
a density current
c.
a fresh water ocean current
b.
a surface current
 

 2. 

   London is much farther north than Chicago, yet it is warmer in London in the winter than it is in Chicago. Why is this true?  
a.
  London's climate is affected by warm ocean currents that flow from the south. 
b.
  The Sun's rays shine at a higher angle in London than in Chicago.  
c.
  Waters around England are warmed by many underwater volcanoes.  
d.
  London receives more sunshine in the winter than other places farther south.  
 

 3. 

In the Northern Hemisphere, currents curve to the right because of the
a.
Coriolis effect.
b.
density.
c.
longshore drift.
d.
moon's gravity.
 

 4. 

The Gulf Stream and North Atlantic Drift both affect Europe's climate. What type of current are they?
a.
warm deep currents
b.
warm surface currents
c.
cold surface currents
d.
cold deep currents
 

 5. 

What two forces cause the Gulf Stream to carry warm water to Europe?
a.
the West Winds and the Trade Winds
c.
the prevailing winds and the coriolis effect
b.
the sun and the wind
d.
surface currents and density currents
 

 6. 

What is the main cause of the Gulf Stream?
a.
the moon’s gravity
c.
winds that blow in regular directions
b.
storms
d.
winds that blow now and then
 

 7. 

A large stream of moving water that flows through the oceans is called a(n)
a.
undertow.
b.
tide.
c.
wave.
d.
current.
 

 8. 

What causes the winds and the currents to curve?
a.
huge seamounts
c.
the continents
b.
the coriolis effect
d.
the Gulf Stream
 

 9. 

The map shows ocean currents in the northern Atlantic Ocean. Which location most likely has the warmest climate?  
mc009-1.jpg
a.
  location A  
c.
  location C  
b.
  location B 
d.
  location D  
 

 10. 

   The phenomenon that causes the winds to be deflected to the left or right due to Earth's rotation is called  
a.
  the Coriolis effect.  
c.
  the nebular hypothesis.  
b.
  differentiation.  
d.
  Steno's laws.  
 

 11. 

   Which natural force creates surface ocean currents?  
a.
  gravity  
c.
  sunlight  
b.
  wind  
d.
  earthquakes  
 

 12. 

What is a cause of waves and currents but not tides?
a.
the sun’s cravity
c.
the moon’s gravity
b.
Earth’s gravity
d.
wind
 

 13. 

How would the climate change in Europe if the Gulf Stream were to stop?
a.
there is no way to know
c.
it would not change
b.
it would be much colder
d.
it would be much warmer
 

 14. 

The Gulf Stream is an example of a
a.
gyre
c.
prevailing wind current
b.
coriolis
d.
density current
 

 15. 

A scientist who studies the ocean is
a.
a geologist
c.
a choreographer
b.
an oceanographer
d.
an astronomer
 



 
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