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WorksheetsAir Composition, Density, Pressure
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
___________is the result of the weight of a column of air pushing on an area.
a)
air pressure
b)
density
c)
volume
d)
none of the above
2.
What does the air consist of?
a)
molecules
b)
helium
c)
density
d)
weather
3.
In what direction(s) does air exert pressure?
a)
everywhere
b)
no where
c)
there is no pressure
d)
downward
4.
A _____________ is the scientific instrument used to measure air pressure.
a)
barometer
b)
thermometer
c)
mercury
d)
watch
5.
What is altitude?
a)
how much something weighs
b)
the distance above sea level
c)
how big something is
d)
how far away something is
6.
As you climb up a mountain what happens to the air pressure?
a)
decreases
b)
increases
c)
stays the same
7.
What happens to the amount of oxygen molecules as altitude increases?
a)
fewer molecules
b)
more molecules
c)
same amount of molecules
d)
nothing happens to the molecules
8.
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.
9.
Cold air exerts _____________ pressure than warm air.
a)
the same
b)
more
c)
less
10.
Density of air is greater at high altitudes.
a)
true
b)
false
11.
Altitude is greater __________.
a)
at the bottom of the mountain
b)
at the top of the mountain
c)
at the center of the mountain
12.
Air pressure is greater _______.
a)
at the top of the mountain
b)
at the bottom of the mountain
c)
at the center of the mountain
13.
Density of air is greater ________.
a)
at the top of the mountain
b)
at the bottom of the mountain
c)
at the center of the mountain
14.
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
15.
The amount of mass in a unit volume of a substance
a)
mass
b)
pressure
c)
volume
d)
density
16.
Why is it hard to breath at high altitudes?
a)
There is too much oxygen in this location.
b)
There is a higher density of air molecules.
c)
There is a low density of air molecules.
d)
The air pressure is greater than at low altitudes.
17.
If density of air is high, pressure is:
a)
high
b)
low
18.
If density of air is low, pressure is:
a)
high
b)
low
19.
More molecules close together, means density is:
a)
high
b)
low
20.
Fewer molecules further apart, means density is:
a)
high
b)
low
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