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Convection Currents (+Review)

Total questions: 37

Worksheet time: 52mins

Name
Class
Date
1.

How does air move away from the poles and toward the equator?


a)

Warm air near the equator rises and moves to the poles.

b)

Cool air at the poles sinks and moves to the equator.


c)

Warm air at the poles sinks and moves to the equator.

d)

Cold air near the equator rises and moves to the poles.

2.

Ocean currents bring warm water from the equator towards Earth's

a)

Southern Hemisphere

b)

Continents

c)

Equator

d)

Poles

3.

​ ​ ​ _________ 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

4.

What does heat do when convection currents are moving?

a)

Sinks

b)

Rises

c)

Stays in place

5.

Which picture shows material that is more dense?

a)

The picture of the left

b)

The picture on the right

6.

What causes convection current in the Earth?

a)

The uneven heating on each layer inside the Earth.

b)

The crusts outer layer.

c)

The temperatures we feel outside.

7.
In convection, COOL air
a)
Rises
b)
Sinks
8.
Energy for convection on the Earth comes from...
a)
The sun
b)
The moon
c)
Solar winds
d)
The ocean
9.

The plates of the crust move because...

a)

volcanoes erupt violently.

b)

of the weight of the oceans.

c)

of convection currents in the mantle.

d)

of the moon's gravity.

10.

Air sinking down toward the Earth's surface causes a...

a)

High Pressure area

b)

Low Pressure area

11.

Slow moving warm air mass that gently overtakes colder air. 

Brings light rain/snow and warmer temperatures.

a)

Cold Front

b)

Gentle Front

c)

Warm Front

d)

Stationary Front

12.

Warm air rising up into the atmosphere that pulls fronts into the area.

Brings clouds and precipitation.

a)

High Pressure

b)

Under Pressure

c)

Low Pressure

d)

Over Pressure

13.

Cold air sinking that pushes fronts away from the area. 

Brings sunny and clear weather.

a)

Cold Front

b)

Warm Front

c)

Low Pressure

d)

High Pressure

14.

What does this symbol indicate?

a)

Upward Front

b)

Cold Front

c)

Stationary Front

d)

Warm Front

15.

What does this symbol indicate?

a)

Ice Caps

b)

Mountain Ridge

c)

Cold Front

d)

Upward Front

16.
The mass of a car is 1000 kg.  How much force would be required to accelerate the car at a rate of 3 m/s2? 
a)
1000 ÷ 3
b)
3 ÷ 1000
c)
1000 x 3
17.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
18.
A 20 kg bike accelerates at 10 m/s2.  what was the force?
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
19.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)
a)
The one with a mass of .78 kg will have the greatest acceleration.
b)
The one with a mass of .52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
20.
45 m/s2 is the... 
a)
Mass
b)
Force 
c)
Acceleration
d)
weight
21.
A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object. To solve this problem you must do - 
a)
32 ÷ 5
b)
5 ÷ 32
c)
32 x 5
22.
A force of 250 N is applied to an object that accelerates at a rate of 5 m/s2.  What is the mass of the object? To solve this problem you must do - 
a)
250 ÷ 5
b)
5 ÷ 250
c)
250 x 5
23.
The masses of four objects are given in this table. If all objects are struck with the same amount of force, which one will have the greatest acceleration?
a)
Object 1
b)
Object 2
c)
Object 3
d)
Object 4
24.
Unbalanced forces make an object:
a)
Come to rest
b)
move at constant velocity
c)
accelerate
d)
explode
25.

What type of boundary is this?

a)

convergent

b)

divergent

c)

transform

26.

What type of boundary is this?

a)

convergent

b)

divergent

c)

transform

27.

What type of boundary is this?

a)

convergent

b)

divergent

c)

transform

28.

Where would sea floor spreading most likely occur?

a)

At convergent boundaries (oceanic vs. oceanic)

b)

At convergent boundaries (oceanic vs. continental)

c)

At divergent plate boundaries (oceanic vs. oceanic)

d)

At transform plate boundaries

29.

What type of crustal features form at a convergent boundary?

a)

salt flats

b)

folded mountains

c)

earthquakes

d)

lakes

30.

What is a convergent boundary?

a)

two plates that converge

b)

two plates that drift apart

c)

two plates that collide and push against each other

d)

two plates that slide past each other

31.
What happens in ALL chemical changes?
a)
Change in state of matter
b)
A new substance is formed
c)
Bubbles are produced
d)
An explosion
32.
Is wood burning a physical or chemical change?
a)
Physical 
b)
Chemical
33.
Is making orange juice a physical or chemical change?
a)
Physical 
b)
Chemical
34.
Is sharpening a pencil a physical or chemical change?
a)
Physical 
b)
Chemical
35.
The Law of Conservation of Mass tells us matter can't  ______________.
a)
change color
b)
change state of matter
c)
be created or destroyed
d)
change temperature
36.
Which city is closest to a high pressure system?
a)
New York
b)
Miami
c)
Minneapolis
d)
Boise
37.

Major surface currents of the ocean are shown in the diagram.

Ocean currents affect weather patterns by--

a)

Regulating when tides occur in coastal area

b)

Trapping heat at the equator to regulate the global climate

c)

Distributing heat from the uneven absorption of solar energy

d)

Increasing the rate of evaporation to transport water to area experiencing droughts