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WorksheetsGlobal Winds and Currents
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
What factors affect surface currents?
a)
Global winds, Tides
b)
Continental deflection, Gravitational pull from moon
c)
Global winds, Coriolis effect, continental deflection
d)
Tides, gravity from sun, Global winds
2.
What factors create deep ocean currents?
a)
Increase in salinity; increase in temperature
b)
Decrease in salinity; decrease in temperature
c)
Increase in salinity; decrease in temperature
d)
Decrease in salinity; increase in temperature
3.
Streamlike movements of water at or near the surface of the ocean are called ____.
a)
Deep Ocean Currents
b)
Jet Stream Currents
c)
Surface Currents
d)
Convection Currents
4.
The Coriolis effect causes ___________.
a)
global winds and surface currents to move in a curved path instead of a straight line
b)
continental deflection
c)
the Earth to rotate on its axis
d)
global winds and deep ocean currents to move in a curved path instead of a straight line.
5.
What does the Coriolis effect have on surface currents in the northern and southern hemispheres?
a)
in general, there is no real effect
b)
in general, surface currents will flow counterclockwise in the northern hemisphere and clockwise in the southern hemisphere.
c)
in general, surface currents will flow clockwise in the northern hemisphere and counterclockwise in the southern hemisphere.
d)
in general, they flow in the same direction
6.
What happens when an ocean current meets a land mass?
a)
the water heats up
b)
the current is deflected
c)
a tidal bore forms
d)
an undertow recedes from the shoreline
7.
Explain the role of density in the movement of deep currents.
a)
Cold, high salinity deep current water is less dense than warm, low salinity surface current water. As warm water sinks, cold water will move in to take its place, creating a circular movement called a convection current.
b)
Cold, high salinity deep current water is more dense than warm, low salinity surface current water. As warm water rises, cold water will move in to take its place, creating a circular movement called a convection current.
8.
The amount of matter in a given space is called ___.
a)
volume
b)
mass
c)
density
d)
pressure
9.
If a cool surface current flows along a coastline, what effect might it have on the climate in that area?
a)
In general, it will bring warmer temperatures in the summer and milder temperatures in the winters
b)
In general, it will bring cooler temperatures in the summer and milder temperatures in the winters
c)
In general, it will have no long term effect on climate in that area.
d)
In general, it will bring cooler temperatures in the summer and colder temperatures in the winters
10.
Where on Earth does the Sun's energy heat up the ocean water the LEAST?
a)
at the Poles
b)
at the equator
c)
near the continents
d)
the Sun's energy heats up ocean water the same all around the Earth
11.
Due to the jet stream, weather in Northern hemisphere blows ---- to ----- .
a)
north; south
b)
east; west
c)
west; east
d)
south; north
12.
What is the initial source for global winds and convection in the atmosphere?
a)
Unequal heating of the Earth by the sun.
b)
The rotation of the Earth
c)
Moon's gravity
d)
continental deflection
13.
If a liquid has a mass of 20 g and a volume of 4 mL, what is the density of the liquid?
a)
5 mL/g
b)
4 g/ mL
c)
5 g/ mL
d)
4 mL/ g
14.
Which of the following is NOT a way to increase density of water?
a)
evaporation of water
b)
freezing of water
c)
Increasing the temperature of water
d)
Decreasing the temperature of water
15.
Where does the intial source of energy come from that creates winds and thus surface currents?
a)
The moon
b)
The sun
c)
The wind
d)
The rotation of the Earth
16.
The global movement of air occurs in convection cells. In general, how does air move?
a)
from areas of higher pressure to areas of lower pressure
b)
From areas of lower pressure to areas of higher pressure
c)
from areas of higher temperature to areas of lower temperature
d)
from areas of lower temperature to areas of higher temperature
17.
Land and water absorb and release the sun’s heat in different ways. One result of this is a sea breeze. Which statement is true of sea breezes?
a)
They originate in the day and blow toward the land.
b)
They originate in the day and blow toward the water.
c)
They originate in the evening and blow toward the land.
d)
They originate in the evening and blow toward the water.
18.
Convert 5000 mL to L
a)
50 L
b)
0.5 L
c)
5 L
d)
500 L
19.
The California Current (west coast) carries ________ water from Canada?
a)
Cold
b)
Warm
c)
Freezing
d)
Fresh
20.
Deep ocean currents are a result of
a)
Global wind patterns
b)
Earth's Rotation
c)
Density
d)
All of the Above
21.
Surface currents are a result of
a)
Global Wind Patterns
b)
Earth's Rotation
c)
Density
d)
All of the Above
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