Phy102 Chapter 14 Latest Real Exam
Questions and Answers with Verified
Solutions | Latest Updated 2026
1) The energy source responsible D) the Sun.
for
molecular motions in Earth's
atmosphere is
A) their own natural kinetic energy.
B) pressure caused by the weight
of
air.
C) atmospheric tides.
D) the Sun.
2) Atmospheric molecules do not C) Earth gravitation.
fly
off into outer space due to
A) their chaotic speeds.
B) their relatively low densities.
C) Earth gravitation.
D) cohesive forces.
3) Compared to the ocean, Earth's D) all of the above
atmosphere is different in that
A) its density varies with depth.
B) it has a less-distinct surface.
C) molecules are more greatly
spaced.
D) all of the above
E) none of the above
,4) About what percentage of E) more than 50%
molecules in the air make up the
atmosphere below a 6-kilometer
altitude?
A) 20%
B) 30%
C) 40%
D) 50%
E) more than 50%
5) The air in your classroom has D) all of the above
A) mass.
B) weight.
C) energy.
D) all of the above
E) none of the above
6) Atmospheric pressure is caused B) weight of the atmosphere.
by the
A) density of the atmosphere.
B) weight of the atmosphere.
C) temperature of the atmosphere.
D) solar energy on the
atmosphere.
7) In drinking soda or water C) atmospheric pressure.
through
a straw, we make use of
A) capillary action.
B) surface tension.
C) atmospheric pressure.
D) Bernoulli's principle.
E) none of the above
, 8) At normal atmospheric pressure B) 1.25 kg.
and temperature, 1 cubic meter of
air
has a mass of about
A) 1.00 kg.
B) 1.25 kg.
C) 2.00 kg.
D) 2.25 kg.
9) When a suction cup sticks to a B) pushed to the wall by the atmosphere.
wall
it is
A) pulled to the wall by the
vacuum.
B) pushed to the wall by the
atmosphere.
C) both of these
D) neither of these
10) Approximately how much air is B) 1 kg
in
a column 1-cm2 in cross section
that
extends from sea level to the top
of
the atmosphere?
A) 1 gram
B) 1 kg
C) 10 kg
D) 100 kg
Questions and Answers with Verified
Solutions | Latest Updated 2026
1) The energy source responsible D) the Sun.
for
molecular motions in Earth's
atmosphere is
A) their own natural kinetic energy.
B) pressure caused by the weight
of
air.
C) atmospheric tides.
D) the Sun.
2) Atmospheric molecules do not C) Earth gravitation.
fly
off into outer space due to
A) their chaotic speeds.
B) their relatively low densities.
C) Earth gravitation.
D) cohesive forces.
3) Compared to the ocean, Earth's D) all of the above
atmosphere is different in that
A) its density varies with depth.
B) it has a less-distinct surface.
C) molecules are more greatly
spaced.
D) all of the above
E) none of the above
,4) About what percentage of E) more than 50%
molecules in the air make up the
atmosphere below a 6-kilometer
altitude?
A) 20%
B) 30%
C) 40%
D) 50%
E) more than 50%
5) The air in your classroom has D) all of the above
A) mass.
B) weight.
C) energy.
D) all of the above
E) none of the above
6) Atmospheric pressure is caused B) weight of the atmosphere.
by the
A) density of the atmosphere.
B) weight of the atmosphere.
C) temperature of the atmosphere.
D) solar energy on the
atmosphere.
7) In drinking soda or water C) atmospheric pressure.
through
a straw, we make use of
A) capillary action.
B) surface tension.
C) atmospheric pressure.
D) Bernoulli's principle.
E) none of the above
, 8) At normal atmospheric pressure B) 1.25 kg.
and temperature, 1 cubic meter of
air
has a mass of about
A) 1.00 kg.
B) 1.25 kg.
C) 2.00 kg.
D) 2.25 kg.
9) When a suction cup sticks to a B) pushed to the wall by the atmosphere.
wall
it is
A) pulled to the wall by the
vacuum.
B) pushed to the wall by the
atmosphere.
C) both of these
D) neither of these
10) Approximately how much air is B) 1 kg
in
a column 1-cm2 in cross section
that
extends from sea level to the top
of
the atmosphere?
A) 1 gram
B) 1 kg
C) 10 kg
D) 100 kg
