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Unit 3: The Dynamic Ocean

Total questions: 112

Worksheet time: 1hrs 11mins

Name
Class
Date
1.
What is the lowest point of a wave called?
a)
crest
b)
trough
c)
breaker
d)
peak
2.
At low tide there is _____.
a)
less beach
b)
more water
c)
higher water
d)
more beach
3.

Which WOULDN'T cause a tsunami?

a)

earthquake

b)

underwater volcanic eruption

c)

gravity

d)

asteroid impact

4.
What is the highest point of a wave called?
a)
the top
b)
peak
c)
crest
d)
trough
5.
What is the distance from the crest of one wave to the crest of another?
a)
current
b)
peak
c)
wave height
d)
wave length
6.

Deep ocean currents are caused by...

a)

density differences caused by temperature & salinity. 

b)

changes in wind directions.

c)

prevailing winds.

d)

gravity

7.

The rise and fall of Earth's waters on its coastlines are called

a)

currents

b)

tides

c)

waves

d)

gravity

8.

There are two high tides and two low tides every

a)

every year

b)

approximately every 24 minutes

c)

approximately every 24 hours

d)

approximately every 12 hours

9.
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
10.

TRUE or FALSE: The sun has a stronger tidal force on Earth than the moon.

a)

TRUE

b)

FALSE

11.

When the sun and moon are 90°90\degree away from each other relative to Earth and partially cancel out the tidal force of each other, thus making weaker tides than usual.

a)

rip tide

b)

spring tide

c)

neap tide

d)

breaker tide

12.

The California Current is a ______ current.

a)

warm

b)

cold

13.
Describe surface currents.
a)
Currents that occur on the surface of the water.
b)
Currents caused by prevailing winds.
c)
Currents caused by water molecules moving in a circular pattern.
d)
Both A & B
14.
What causes waves?
a)
ice and wind
b)
winds and currents
c)
currents and tides
d)
wind and tide changes
15.
What is the lowest point of a wave called?
a)
crest
b)
trough
c)
breaker
d)
peak
16.
A _____ is a transfer of energy from one water molecule to the next.
a)
current
b)
wave
c)
breaker
17.
Describe surface currents.
a)
Currents that occur on the surface of the water.
b)
Currents caused by prevailing winds.
c)
Currents caused by water molecules moving in a circular pattern.
d)
Both A & B
18.
What causes waves?
a)
ice and wind
b)
winds and currents
c)
currents and tides
d)
wind and tide changes
19.
What is the lowest point of a wave called?
a)
crest
b)
trough
c)
breaker
d)
peak
20.
At low tide there is _____.
a)
less beach
b)
more water
c)
higher water
d)
more beach
21.
What is a tsunami?
a)
a wave direction
b)
a type of current
c)
a sand particle
d)
a giant sea wave
22.
How are waves, tides, and currents alike?
a)
Always moving, affect the shape of the shoreline
b)
Affect the shape of the shoreline & are caused by wind
c)
Affect the shape of the shoreline & are caused by tsunamis
d)
Always moving & affected by gravity
23.
Surface currents...
a)
occur below the surface of the water.
b)
occur above the surface of the water.
c)
occur on the surface of the water.
d)
All of the above.
24.
What is the highest point of a wave called?
a)
the top
b)
peak
c)
crest
d)
trough
25.
What is the same about density currents and surface currents?
a)
circular flow
b)
caused by temperature
c)
generated by wind
d)
direction is altered by landforms in their path
26.
What is the distance from the crest of one wave to the crest of another?
a)
current
b)
peak
c)
wave height
d)
wave length
27.
What is the distance from the trough of the wave to the crest?
a)
peak
b)
wave length
c)
wave height
d)
trough
28.
Density currents are caused by...
a)
density differences caused by temperature & salinity. 
b)
changes in wind directions.
c)
prevailing winds.
29.
Longshore currents flow...
a)
in a zig zag pattern.
b)
parallel to the shoreline.
c)
vertically to the shoreline.
30.

The rise and fall of Earth's waters on its coastlines are called

a)

currents

b)

tides

c)

waves

d)

gravity

31.

Tides are caused by the interaction and influence of

a)

the Earth

b)

the Sun

c)

the Moon

d)

gravity

e)

wind

32.

There are two high tides and two low tides every

a)

every year

b)

approximately every 24 minutes

c)

approximately every 24 hours

d)

approximately every 12 hours

33.
Besides the Moon, the daily tides around the world are MOST affected by the
a)
wind
b)
rain
c)
Sun
d)
Coriolis effect
34.
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
35.
Which factor is MOST responsible for the ocean tides?
a)
the wind
b)
earthquakes
c)
the moon's gravity
d)
density differences in water
36.
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
37.
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
38.

The highest tide of the month is referred to as a

a)

spring tide.

b)

longshore tide.

c)

neap tide.

d)

trough.

39.

Which of the following does NOT cause a tsunami?

a)

Earthquakes

b)

Meteorites

c)

Tides

d)

Glacial collapse

40.

Which of the following is true of gyres in the Northern Hemisphere?

a)

They move in a counter-clockwise direction.

b)

They move in a clockwise direction.

c)

They can move either clockwise or counter-clockwise.

d)

They all move towards the equator.

41.

The current created by the returning water from a wave breaking on the beach is called a(n)

a)

upwelling.

b)

tidal current.

c)

whirlpool.

d)

undertow.

42.

The direction gyres move is caused by the ____________ and is/are called ____________.

a)

rotation of the Earth, the Coriolis Effect

b)

revolution of the Earth, the Coriolis Effect

c)

gravitational pull of the moon, countercurrents

d)

gravitational pull of the sun, countercurrents

43.

Very tall, lone waves that can cause the loss of ships at sea are called

a)

rogue waves.

b)

tidal bores.

c)

tsunamis.

d)

whitecaps.

44.

A vertical subsurface current that brings up cold, nutrient-rich sediments from the deep ocean is called a(n)

a)

undertow.

b)

rip current.

c)

turbidity current.

d)

upwelling.

45.

Which type of ocean movement varies depending on the current moon phase?

a)

Current

b)

Wave

c)

Tide

46.

TRUE or FALSE: The Gulf Stream carries cool water toward the North Atlantic, causing the weather in Great Britain to be colder.

a)

TRUE

b)

FALSE

47.

TRUE or FALSE: The Gulf Stream carries cool water toward the North Atlantic, causing the weather in Great Britain to be colder.

a)

TRUE

b)

FALSE

48.

Which type of tides happen twice every day in most places?

a)

High/Low

b)

Spring

c)

Neap

49.

Which type of tides have a smaller change in sea level due to the Earth, Moon, and Sun forming a right angle?

a)

High/Low

b)

Spring

c)

Neap

50.

Which type of tides have a larger tidal range due to the Earth, Moon, and Sun forming a line?

a)

High/Low

b)

Spring

c)

Neap

51.
Which body has the greater effect on Earth's tides?
a)
Sun
b)
Saturn
c)
Moon 
d)
Venus
52.
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
53.
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
54.

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

55.
If the Earth did not rotate on its axis, there would be no
a)
Greenhouse effect
b)
Coriolis effect
c)
Global warming
d)
Convection
56.

This Image represents...

a)

Downwelling

b)

Upwelling

c)

Thermohaline circulation

d)

Rip Current

57.
Movements of ocean water in a continuous flow are called?
a)
ocean currents
b)
global winds
c)
air mass
d)
front
58.
If the Earth did not rotate on its axis, there would be no
a)
Greenhouse effect
b)
Coriolis effect
c)
Global warming
d)
Convection
59.

This Image represents...

a)

Downwelling

b)

Upwelling

c)

Thermohaline circulation

d)

Rip Current

60.
Movements of ocean water in a continuous flow are called?
a)
ocean currents
b)
global winds
c)
air mass
d)
front
61.
The Coriolis Effect is caused by
a)
Earth rotating around the sun
b)
Earth rotating on its axis
c)
The tides
d)
Gravity
62.
Due to the Coriolis Effect, water in the northern hemisphere moves
a)
clockwise
b)
counter clockwise
c)
both
d)
neither
63.
Due to the Coriolis Effect, water in the southern hemisphere moves
a)
clockwise
b)
counter-clockwise
c)
both
d)
neither
64.
What is represented at point 2?
a)
wave height
b)
wavelength
c)
crest
d)
trough
65.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
66.
Deep Ocean currents are a result of
a)
Global Wind Patterns
b)
Earth's Rotation
c)
Density
d)
All of the above
67.

______ causes surface currents.

a)

The Coriolis Effect

b)

gravity

c)

density differences

d)

wind

68.

The more scientific name of the Global Conveyor Belt is _____.

a)

halinethermal circulation

b)

thermohaline circulation

c)

thermodensity circulation

69.
As you go deeper in the ocean, the water is colder and less salty.
a)
True
b)
False
70.
The large, circular surface-current pattern found in each ocean.
a)
California Current
b)
Surface Current
c)
Gyre
d)
Global Conveyor Belt
71.

The __________ is a surface current that flows along the eastern US and brings warm water to Europe.

a)

California Current

b)

Gulf Current

c)

North American Gyre

d)

Arctic Current

72.
What causes ocean currents in the Northern Hemisphere to curve to the right?
a)
Earth's orbit around the Sun
b)
Earth's spinning on its axis
c)
Earth's magnetic field
d)
Earth's force of gravity
73.

Two types of ocean currents are

a)

local and global

b)

sea and land

c)

surface and deep

d)

warm and cold

74.

Temperature and salinity differences in ocean water cause:

a)

Mid-ocean ridges

b)

Deep Currents

c)

Surface Currents

d)

High tide and low tide

75.
What do ocean currents move around the world?
a)
Gases
b)
Nutrients
c)
Heat Energy
d)
All of these
76.
What is represented at point 3?
a)
wave height
b)
wavelength
c)
crest
d)
trough
77.
Water does not move, _____________ moves.
a)
Water
b)
Energy
c)
Waves
d)
Fish
78.

______ causes surface currents.

a)

The Coriolis Effect

b)

gravity

c)

density differences

d)

wind

79.

______ causes deep ocean currents

a)

The Coriolis Effect

b)

gravity

c)

wind

d)

density differences

80.

Decreasing ocean temperature causes the density of the water to ______.

a)

decrease

b)

increase

c)

stay the same

d)

fluctuate

81.

As plants and animals in the ocean die, the nutrients produced from their decay _____.

a)

are recycled by the Global Conveyor Belt

b)

sink to the bottom

c)

are destroyed by sunlight

d)

become coral reefs

82.

Nutrients are brought to the surface for phytoplankton to use at _______.

a)

gyres

b)

eddies

c)

upwellings

d)

the equator

83.

_______ causes the Coriolis Effect

a)

Earth's rotation

b)

gravity

c)

wind

d)

density

84.

The __________ is a surface current that flows along the eastern US and brings warm water to Europe.

a)

California Current

b)

Gulf Current

c)

North American Gyre

d)

Arctic Current

85.

There are (is) _______ major gyres in each ocean.

a)

1

b)

2

c)

3

d)

4

86.

Gyres in the southern hemisphere are surface currents that turn _________ due to the Coriolis Effect.

a)

clockwise

b)

counterclockwise

c)

toward the right

d)

toward the bottom of the ocean

87.

_______ are the producers of Antarctic food webs.

a)

Zooplankton

b)

Phytoplankton

c)

Whales

d)

Upwellings

88.

_________ food chains support larger ocean animals because _________ water has more nutrients.

a)

Antarctic/warmer

b)

Antarctic/colder

c)

Equatorial/colder

d)

Equatorial/warmer

89.

When looking at a satellite map of eddies, the cold-core eddies are more likely to have ________.

a)

downwellings

b)

upwellings

c)

very few nutrients

d)

very little dissolved oxygen

90.

________ and _______ affect the ocean's density and cause the Global Conveyor Belt to travel

a)

gravity and the Coriolis Effect

b)

temperature and salinity

c)

wind and climate

d)

temperature and the Coriolis Effect

91.

The more scientific name of the Global Conveyor Belt is _____.

a)

halinethermal circulation

b)

thermohaline circulation

c)

thermodensity circulation

92.
Winds blow from
a)
low to high pressure
b)
high to low pressure
c)
North to South
d)
East to West
93.

The movement of deep, cold, nutrient filled water to the surface of the ocean is..

a)

Ocean Current

b)

Upwelling

c)

Deep Currents

d)

Surface Currents

94.

What affects the density of water?

a)

Salt

b)

Temperature

c)

The seasons of the year

d)

Both A and B

95.

Why is upwelling important?

a)

Upwelling regulates ocean temperature

b)

Upwelling provides nutrient rich water that sustains life

c)

Upwelling controls the tides

d)

Upwelling helps sailors to navigate the seas

96.
When surface currents meet continents they ___?
a)
Stop moving
b)
Are deflected (change paths)
c)
Continue in the direction they were going
97.
Two types of ocean currents are
a)
local and global
b)
sea and land
c)
surface and deep
d)
warm and cold
98.

What are a circular system of currents in the Earth's major oceans?

a)

ocean current

b)

gyre

c)

upwelling

d)

conveyor belt

99.
Currents that occur at or near the surface of the ocean are called 
a)
Deep Currents
b)
Convection Currents
c)
Surface Currents
d)
Wave Currents
100.
Surface currents are mainly caused by
a)
The Coriolis Effect
b)
Cold and Warm Water
c)
Convection
d)
Wind
101.
What happens when there is a spring tide
a)
high tides 
b)
really high tides
c)
low tides
102.
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 
103.
Water in the ocean is always
a)
Moving
b)
Still
c)
Warming up
d)
Cooling down
104.
Air moves from _______ pressure to _______ pressure.
a)
Low, High
b)
High, Low
c)
Warm, Cold
d)
Cold, Warm
105.
Air travels in patterns around the Earth called
a)
Global Winds
b)
Local Winds
c)
Ocean Winds
d)
Blowing Winds
106.
The deflection of currents due to Earth's rotation is called the
a)
Rotation Effect
b)
Current Effect
c)
Coriolis Effect
d)
Deflection Effect
107.
Upwelling provides _________ for many sea organisms.
a)
Water
b)
Nutrients
c)
Air
d)
Heat
108.

Warm ocean currents generally come from

a)

The North Pole

b)

The South Pole

c)

The Equator

d)

Both A and B

109.
The Gulf stream carries _____________ water from the east coast of The United States to the West coast of Europe.
a)
Cold
b)
Warm 
c)
Freezing
d)
Fresh
110.
The Coriolis Effect is caused by
a)
Earth rotating around the sun
b)
Earth rotating on its axis
c)
The tides
d)
Magic water fairies
111.
Cold ocean currents generally come from
a)
The North Pole 
b)
The South Pole
c)
The Equator
d)
Both North and South Poles
112.
Tides are caused by __________.
a)
wind
b)
density differences
c)
gravity
d)
salinity differences

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