WorksheetsOcean Currents & Tides
Total questions: 25
Worksheet time: 14mins
Name
Class
Date
1.
What is a difference between spring and neap tides?
a)
Spring tides occur when the earth and sun are IN LINE with the new or full moon.
b)
Spring tides occur when moon in 3rd or 1st quarter phases
c)
Spring tides are LOWER than neap tides
2.
Wha type of tide would this arrangement of earth-moon-sun create?
a)
full moon tide
b)
new moon tide
c)
neap tide
d)
spring tide
3.
What type of tides would this arrangement of earth-moon-sun create?
a)
neap tide
b)
spring tide
c)
new moon tide
d)
full moon tide
4.
What happens when there is a spring tide
a)
high tides
b)
really high tides
c)
low tides
5.
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
6.
What do we call a tide that has a large range between the high and low tides?
a)
gravity tide
b)
wind tide
c)
spring tide
d)
neap tide
7.
What do we call the small tides that happen when the sun and moon are at right angles to each other?
a)
Neap Tide
b)
Spring Tide
c)
Larger Change
d)
Smaller Change
8.
What are tides?
a)
More water filling up the ocean
b)
The rising and falling of the water on the earth surface
c)
Jupiter orbiting the moon
d)
Waves in the oceans
9.
Surface ocean currents are generated mostly by
a)
the Coriolis effect
b)
water density
c)
tides
d)
wind
10.
The Gulf Stream current makes the waters of North Atlantic
a)
cooler
b)
warmer
c)
more dense
d)
less nutrient rich
11.
Besides the Moon, the daily tides around the world are MOST affected by the
a)
wind
b)
rain
c)
Sun
d)
Coriolis effect
12.
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
13.
Which of the following can be caused by El Nino~?
a)
Flash floods
b)
Mudslides
c)
Droughts
d)
All of the above
14.
The vertical distance between the highest and lowest points of a wave is called
a)
wavelength
b)
wave height
c)
crest
d)
trough
15.
What name is given to large, destructive waves caused by underwater earthquakes and volcanoes?
a)
Spring tide
b)
Longshore current
c)
Tsunami
d)
Swell
16.
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
17.
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
18.
Which factor is MOST responsible for the ocean tides?
a)
the wind
b)
earthquakes
c)
the moon's gravity
d)
density differences in water
19.
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
20.
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
21.
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
22.
Surface currents and waves are powered by
a)
wind and heat
b)
wind and tides
c)
boats and wind
d)
heat and weather
23.
Upwelling is associated with
a)
a decrease in access to nutrients for phytoplankton
b)
cooler, nutrient-rich waters being pushed up from deeper ocean waters
c)
temperature gradients moving water from the equator to the poles
d)
an increase in human fatalities
24.
A dangerous current that results from a break in a sandbar is known as a
a)
longshore current
b)
global current
c)
tidal current
d)
rip current
25.
Global ocean currents move
a)
counterclockwise north at the equator and clockwise south of the equator
b)
clockwise north of the equator and counterclockwise south of the equator
c)
clockwise north and south of the equator
d)
counterclockwise north and south of the equator
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