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Marine Science: Ocean Movement, Properties and Tides

Total questions: 65

Worksheet time: 2hrs 38mins

Name
Class
Date
1.

a measure of the mass of dissolved salt in a given mass of water.

a)

Coriolis effect

b)

Salinity

c)

marine

d)

gyre

2.

the movement of wind and water to the right or left that is caused by Earth's rotation

a)

tidal range

b)

upwelling

c)

Coriolis effect

d)

neap tide

3.

the periodic rise and fall of the ocean's surface caused by the gravitational force between Earth and the Moon, and between Earth and the Sun.

a)

brackish

b)

seawater

c)

upwelling

d)

tide

4.

a large volume of water flowing in a certain direction

a)

tide

b)

ocean current

c)

upwelling

d)

tsunami

5.

the difference in water level between a high tide and a low tide

a)

neap tide

b)

tidal range

c)

marine

d)

salinity

6.

The main cause of thermohaline currents is

a)

wind

b)

earthquakes

c)

density

d)

pressure

7.

What does the blue line represent in the Thermohaline circulation?

a)

Warm salty water

b)

Warm water

c)

Cold water

d)

Cold salty water

8.

Which of the following types of water would SINK the fastest?

a)

warm and salty

b)

cold and salty

c)

warm and fresh

d)

cold and fresh

9.
Two types of ocean currents are
a)
local and global
b)
sea and land
c)
surface and deep
d)
warm and cold
10.
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
11.
Surface currents are mainly caused by
a)
The Coriolis Effect
b)
Cold and Warm Water
c)
Convection
d)
Wind
12.
Ocean currents move energy in the form of
a)
Salt
b)
Water
c)
Heat
d)
Oxygen
13.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
14.

________ 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

15.

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

a)

halinethermal circulation

b)

thermohaline circulation

c)

thermodensity circulation

16.
As you go deeper in the ocean, the water is colder and less salty.
a)
True
b)
False
17.
Movements of ocean water in a continuous flow are called?
a)
ocean currents
b)
global winds
c)
air mass
d)
front
18.
Movements of ocean water in a continuous flow are called?
a)
ocean currents
b)
global winds
c)
air mass
d)
front
19.
Due to the Coriolis Effect, water in the northern hemisphere moves
a)
clockwise
b)
counter clockwise
c)
both
d)
neither
20.
What is represented at point 2?
a)
wave height
b)
wavelength
c)
crest
d)
trough
21.
Deep Ocean currents are a result of
a)
Global Wind Patterns
b)
Earth's Rotation
c)
Density
d)
All of the above
22.
The large, circular surface-current pattern found in each ocean.
a)
California Current
b)
Surface Current
c)
Gyre
d)
Global Conveyor Belt
23.
What do ocean currents move around the world?
a)
Gases
b)
Nutrients
c)
Heat Energy
d)
All of these
24.
What is represented at point 3?
a)
wave height
b)
wavelength
c)
crest
d)
trough
25.
Water does not move, _____________ moves.
a)
Water
b)
Energy
c)
Waves
d)
Fish
26.

On this wave diagram, what is B?

a)

amplitude

b)

crest

c)

trough

d)

wavelength

27.

On this wave diagram, what is C?

a)

amplitude

b)

crest

c)

trough

d)

wavelength

28.

What is the relationship between amplitude and wave height?

a)

There is no relationship.

b)

Wave height is half amplitude.

c)

Amplitude is half wave height.

29.

A _______ is a disturbance that transfers energy through matter.

a)

Salinity

b)

Wave

c)

Temperature  

d)

Density

30.

Wave _____ is the distance between the crest of two waves. 

a)

Speed

b)

Frequency

c)

Size

d)

Length

31.

.  _____ is the number of waves produced in a certain amount of time.  

a)

Speed

b)

Frequency

c)

Size

d)

Length

32.

As the depth of ocean water increases, the temperature

a)

increases.

b)

decreases.

c)

fluctuates depending on the pressure.

d)

stays the same.

33.
What happens to a current when it comes in contact with a continent or landmass?
a)
It continues over the continent
b)
It stops
c)
It changes direction
d)
It is absorbed by the land
34.

Which of the following best explains convection?

a)

cold, dense water rises, hot, more dense water sinks

b)

cold, less dense water rises, hot dense water sinks

c)

cold, less dense water sinks, hot dense water rises

d)

cold, dense water sinks, hot, less dense water rises.

35.

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

a)

decrease

b)

increase

c)

stay the same

d)

fluctuate

36.

Which tide would be caused by the positions of the sun and moon in the picture?

a)

High Tide

b)

Low Tide

c)

Spring Tide

d)

Neap Tide

37.

Which tide would be caused by the positions of the sun and moon in the picture?

a)

High Tide

b)

Low Tide

c)

Spring Tide

d)

Neap Tide

38.

If a Spring Tide occurs during a New Moon or a Full Moon, when does a Neap Tide occur?

a)

Never

b)

Also during a New Moon and Full Moon

c)

During a Half Moon (Waxing and Waning)

d)

The tides are always at Neap Conditions

39.

If the moon were to move CLOSER to Earth, which of the following would be true?

a)

High tides would get higher

b)

Low tides would get higher

c)

There would be no change to the tides

d)

High tide and Low tide would have litte difference in size.

40.

What 2 factors largely impact the density of ocean water?

a)

Density and Pressure

b)

Temperature and Coriolis Effect

c)

Temperature and Salinity

d)

Pressure and Salinity

41.

Spring tides are when the sun and moon are lined up and working together.

a)

True

b)

False

42.

Neap tides are when the sun and moon are lined up and working together.

a)

True

b)

False

43.

Tides are caused by

a)

Inertia

b)

earths rotation

c)

earths revolution

d)

gravitational pull from the moon

44.

How many high tides per day

a)

6

b)

3

c)

2

d)

4

45.

spring tide

a)

higher highs, lower lows

b)

higher highs, higher lows

c)

lower highs, lower lows

d)

lower highs, higher lows

46.

Sudden changes in temperatures over small depth intervals are called

a)

Gyres

b)

Overturns

c)

Coriolis Effects

d)

Thermoclines

47.

The Gulf Stream Current follows the _________ coast of the US?

a)

North

b)

West

c)

East

d)

South

48.

The Gulf Stream current

a)

cools the air where it travels

b)

cools the land where it travels

c)

is warmed by the air

d)

warms the the air where it travels

49.

The ocean conveyor belt is

a)

a belt that carries minerals to the poles and the equator

b)

world wide circulation system

c)

the Pacific ring of currents that distribute heat and energy

d)

A high range of mountains

50.

There are partial charges within a water molecule which cause water to have special properties. This makes water a ________ molecule.

a)

Polar

b)

Nonpolar

c)

Hydrophobic

d)

Ionic

51.

Very light insects can sit on top of water because of

a)

Water's High Heat of Vaporization

b)

Surface Tension

c)

Water's High Specific Heat

d)

Capillary Action

52.

Why does ice float?

a)

As water freezes, the molecules move farther apart (expands) and the density decreases.

b)

As water freezes, the hydrogen bonds mix with air and create buoyancy.

c)

As water freezes, the bonds break, making it float.

d)

As water freezes, the molecules move closer together, causing the density to increase.

53.

What makes water a universal solvent?

a)

It is a polar molecule that can form hydrogen bonds, allowing it to dissolve many substances.

b)

It is a nonpolar molecule that can form hydrogen bonds, allowing it to dissolve many substances.

c)

It is a polar molecule with a low specific heat, allowing it to dissolve many substances.

d)

It is a nonpolar molecule with a low specific heat, allowing it to dissolve many substances.

54.

What property allows water molecules to stick to each other to form drops?

a)

Cohesion

b)

Adhesion

c)

Surface Tension

d)

Capillary Action

55.
Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?
a)
Water is an acid.
b)
Water is a versatile solvent.
c)
Water has a high heat capacity.
d)
 Water acts as a buffer.
56.

Measure of the ocean's salts, solids and gases.

a)

Density

b)

Salinity

c)

Pressure

d)

Dissolution

57.

Which of the following affect ocean salinity?

a)

Freshwater dilutes the ocean near the mouth of rivers

b)

Slower evaporation results in more diluted sea water.

c)

Lower rainfall and higher evaporation results in higher salt concentrations

d)

All answers are correct

58.

Which of the following is NOT a reason the ocean has salt in it?

a)

Hydrothermal vents

b)

Rainwater runoff

c)

Volcanism

d)

comet impact

59.

Which of the following are the most abundant in ocean water?

a)

Sodium

b)

Chloride

c)

Magnesium

d)

Sulfates

60.

What amount of the ocean accounts for salinity?

a)

96.5 ppt

b)

35 ppt

c)

89 ppt

d)

65 ppt

61.

1 atmosphere is added for every ___________ in seawater

a)

20m

b)

30m

c)

10m

d)

5m

62.

How could salinity increase or decrease?

a)

Removal and addition of pure water.

b)

Increase in a variety of dissolved gases.

c)

Increase the pH of seawater.

63.

Which two solutes make up the largest percentage of dissolved material in seawater?

a)

Sodium, Sulfate

b)

Chloride, Magnesium

c)

Sodium, Chloride

d)

Sulfate, Magnesium

64.

The three most abundant gases dissolved in seawater are

a)

Hydrogen, Sodium Chloride and Carbon

b)

Carbon, Chloride and Oxygen

c)

Carbon dioxide, Nitrogen and Magnesium

d)

Nitrogen, Carbon Dioxide and Oxygen.

65.

The term that indicates slight salinity differences at depth is

a)

halocline

b)

thermocline

c)

attenuation

d)

salinity

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