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Air pressure and wind

Total questions: 18

Worksheet time: 26mins

Name
Class
Date
1.

________ is the force exerted on an object by the weight of the air above and around it.

a)

Wind pressure

b)

Air pressure

c)

Temperate weight

d)

high pressure air

2.
What is the name of the instrument used to measure air pressure?
a)
Anemometer
b)
Thermometer
c)
Barometer
d)
Hygrometer
3.

What is caused by differences in air pressure?

a)

Time

b)

Precipitation

c)

Clouds

d)

Wind

4.

What causes differences in air pressure?

a)

wind

b)

rain

c)

snow

d)

solar radiation

5.

This is when the rotation of the Earth affects the direction of the wind.

a)

convergent effect

b)

marginal effect

c)

Coriolis effect

d)

Mariana effect

6.
At the equator the air is usually ________.
a)
rising
b)
sinking
7.
At the poles, air is usually ________.
a)
rising
b)
sinking
8.
In what direction(s) does air exert pressure?
a)
everywhere
b)
no where
c)
there is no pressure
d)
downward
9.

Earth has a low air pressure zone at the equator because

a)

air is cold and sinks toward the surface of Earth there

b)

air is cold and moves away from the surface of the Earth there

c)

air is warm and moves away from the surface of the Earth there

d)

air is warm and moves toward from the surface of the Earth there

10.

Earth has a high air pressure zone at the north pole because

a)

air is cold and sinks toward the surface of Earth there

b)

air is cold and moves away from the Earth there

c)

air is warm and moves away from the surface of the Earth there

d)

air is warm and sinks toward the surface of Earth there

11.

What is wind?

a)

movement of air due to pressure differences

b)

disturbances in the magnetic field

c)

movement of air due to Earth's rotation

d)

movement of air due to clouds

12.

Which of these statements about air is FALSE?

a)

It takes up space.

b)

It is not affected by gravity.

c)

It can be compressed.

d)

It has mass.

13.

78% of earth's atmosphere is composed of ____?

a)

carbon dioxide

b)

oxygen

c)

argon

d)

nitrogen

14.
Air pressure is greatest when near Earth's surface because?
a)
The air molecules are farther apart.
b)
The air molecules are closer together.
c)
Air molecules collide.
d)
Air molecules are tightly packed.
15.
Air pressure does not crush objects on earth
a)
because more air pushes down than up
b)
because gravity keeps air pressure away
c)
because air pressure pushes in all directions
d)
because the Earth has an opposing force of gravity
16.

_______ and ________ are the units used by meteorologists to describe air pressure.

a)

inches of mercury and millimeters of water

b)

millibars and degrees celsius

c)

degrees faharenheit and celsius

d)

inches of mercury and millibars

17.

What holds a card on an inverted cup of water held in the air?

a)

A seal forms between the card and the jar.

b)

A vacuum forms, sucking the card in and holding it to the jar.

c)

Air pressure outside the jar is greater that the air pressure and weight of the water in the jar.

d)

The gravity of the water is pulling on the card.

18.

Which of the following questions about air pressure is FALSE?

a)

The atmosphere is held to Earth by gravity.

b)

Air pressure is caused by gravity and the collision of air molecules.

c)

Air pressure only pushes down.

d)

Air pressure changes through the day due to temperature changes.