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WorksheetsWaves, Tides, and Currents
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
Surface ocean currents are generated mostly by
a)
the Coriolis effect
b)
water density
c)
tides
d)
wind
2.
The Gulf Stream current makes the waters of North Atlantic
a)
cooler
b)
warmer
c)
more dense
d)
less nutrient rich
3.
Besides the Moon, the daily tides around the world are MOST affected by the
a)
wind
b)
rain
c)
Sun
d)
Coriolis effect
4.
How do warm-water currents affect the coastal areas along which they flow?
a)
Cool the coast
b)
Warm the coast
c)
Cause snow to fall
d)
Cause higher tides
5.
Which of the following can be caused by El Nino~?
a)
Flash floods
b)
Mudslides
c)
Droughts
d)
All of the above
6.
The vertical distance between the highest and lowest points of a wave is called
a)
wavelength
b)
wave height
c)
crest
d)
trough
7.
In what direction does an undertow flow?
a)
same direction as the wave
b)
right angles to the wave
c)
parallel to the wave
d)
opposite direction as the wave
8.
What name is given to large, destructive waves caused by underwater earthquakes and volcanoes?
a)
Spring tide
b)
Longshore current
c)
Tsunami
d)
Swell
9.
When you are playing in the ocean, you must watch out for ____, a spot where the longshore current carries water back into the ocean.
a)
swell
b)
rip tide
c)
neap tide
d)
trough
10.
Spring tides and neap tides occur in patterns governed by the
a)
phases of the moon
b)
seasons (fall, winter, etc.)
c)
surface currents
d)
deep sea currents
11.
The height of a wave is MOST affected by the
a)
speed of the wind
b)
speed of the ocean
c)
salinity of the ocean
d)
amount of solar energy
12.
Which factor is MOST responsible for the ocean tides?
a)
the wind
b)
earthquakes
c)
the moon's gravity
d)
density differences in water
13.
When the moon is at full moon or new moon, what type of tide will we experience?
a)
rip tide
b)
spring tide
c)
neap tide
d)
breaker tide
14.
Why do waves increase in height as they approach the shore?
a)
waves are forced into inlets
b)
water particles speed up
c)
water density increases
d)
they interact with ocean floor
15.
As ocean waves approach the shore, the top curls over and crashes into the sand. What do we call theses waves?
a)
breakers
b)
rip tides
c)
longshore currents
d)
tsunamis
16.
Surface currents and waves are powered by
a)
wind and heat
b)
wind and tides
c)
boats and wind
d)
heat and weather
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