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Ocean Currents

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

What would be the effect on the particles in the animation if more heat is supplied to the system?

a)

They would slow down.

b)

They would stop moving completely.

c)

They would speed up.

d)

There would be no effect.

2.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
3.

Which of the following best explains why the sand at the beach is hotter than the water?

a)

Sand has a higher specific heat than water.

b)

Sand has a lower specific heat than water.

c)

There is more water than sand at the beach.

d)

There is more sand than water at the beach.

4.

The amount of energy required to raise the temperature 1ºC for every gram is called____?

a)

Thermal Energy

b)

Specific Heat

c)

Temperature

d)

Vibration

5.
Movements of ocean water in a continuous flow are called?
a)
ocean currents
b)
global winds
c)

air masses

d)

weather fronts

6.
Warm ocean currents generally come from
a)

the North Pole

b)

the South Pole

c)

the Equator

d)

upwelling

7.

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

a)

increase

b)

stay the same

c)

decrease

8.

Increasing water salinity causes the density of the water to ______.

a)

increase

b)

stay the same

c)

decrease

9.

Where is ocean water the most dense?

a)

the surface

b)

near the Equator

c)

the bottom

d)

the middle of gyres

10.

What causes deep ocean currents?

a)

The Coriolis Effect

b)

gyres

c)

wind

d)

density differences

11.

What causes ocean currents in the Northern Hemisphere to rotate clockwise?

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
12.
If the Earth did not rotate on its axis, there would be no
a)

Great Ocean Conveyor Belt

b)
Coriolis effect
c)

upwelling

d)
Convection
13.
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.

14.

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

a)

gyres

b)

eddies

c)

upwellings

d)

the equator

15.

________ and _______ affect the ocean's density and cause the Great Ocean Conveyor Belt to travel.

a)

gravity and the Coriolis Effect

b)

temperature and salinity

c)

wind and climate

d)

temperature and the Coriolis Effect

16.

The more scientific name of the Great Ocean Conveyor Belt is _____.

a)

halinethermal circulation

b)

thermohaline circulation

c)

thermodensity circulation

d)

upwelling

17.

What is the large, circular surface-current pattern found in each ocean called?

a)
California Current
b)
Surface Current
c)
Gyre
d)

Great Ocean Conveyor Belt