Question 1

It would be easier to pull the evacuated Magdeburg hemispheres apart if they were

Accepted Answer

A) held upside down. 
B) at sea level. 
C) 20 km beneath the ocean surface. 
D) 20 km above the ocean surface. 
E) none of the above 
A) held upside down. 
B) at sea level. 
C) 20 km beneath the ocean surface. 
D) 20 km above the ocean surface. 
E) none of the above

Question 2

As a balloon rises higher and higher into the atmosphere its

Accepted Answer

A) volume decreases. 
B) density increases. 
C) weight increases. 
D) mass decreases. 
E) none of the above 
A) volume decreases. 
B) density increases. 
C) weight increases. 
D) mass decreases. 
E) none of the above

Question 3

Archimedes' principle applies to

Accepted Answer

A) liquids. 
B) gases. 
C) fluids. 
D) all of the above 
A) liquids. 
B) gases. 
C) fluids. 
D) all of the above

Question 4

Approximately how much air is in a column 1-cm2 in cross section that extends from sea level to the top of the atmosphere?

Accepted Answer

A) 1 gram 
B) 1 kg 
C) 10 kg 
D) 100 kg 
A) 1 gram 
B) 1 kg 
C) 10 kg 
D) 100 kg

Question 5

The flight of a blimp best illustrates

Accepted Answer

A) Archimedes' principle. 
B) Pascal's principle. 
C) Bernoulli's principle. 
D) Boyle's law. 
A) Archimedes' principle. 
B) Pascal's principle. 
C) Bernoulli's principle. 
D) Boyle's law.

Question 6

Atmospheric molecules do not fly off into outer space due to

Accepted Answer

A) their chaotic speeds. 
B) their relatively low densities. 
C) Earth gravitation. 
D) cohesive forces. 
A) their chaotic speeds. 
B) their relatively low densities. 
C) Earth gravitation. 
D) cohesive forces.

Question 7

While Debbie Diver holds her breath and swims deeper and deeper beneath the water's surface, her density

Accepted Answer

A) increases. 
B) decreases. 
C) remains the same. 
A) increases. 
B) decreases. 
C) remains the same.

Question 8

The weight of air in a bathtub (about 1/3 cubic meter)is about the same as the weight of

Accepted Answer

A) a pea. 
B) an egg. 
C) a small apple. 
D) a pound of butter. 
E) a 10-pound sack of potatoes. 
A) a pea. 
B) an egg. 
C) a small apple. 
D) a pound of butter. 
E) a 10-pound sack of potatoes.

Question 9

The weight of air in a column 1-m2 in cross section that extends from sea level to the top of the atmosphere is

Accepted Answer

A) 101 N. 
B) 10,100 N. 
C) 101,000 N. 
D) 101,000,000 N. 
A) 101 N. 
B) 10,100 N. 
C) 101,000 N. 
D) 101,000,000 N.

Question 10

Inside the same room, buoyant force is greater on

Accepted Answer

A) a helium-filled party balloon. 
B) an elephant. 
C) both the same 
A) a helium-filled party balloon. 
B) an elephant. 
C) both the same

Question 11

A column that extends from sea level to the top of the atmosphere contains a certain mass of air. If the column instead contained the same mass of water, its height would be about

Accepted Answer

A) 3/4 meter. 
B) 10.3 meters. 
C) 5.6 kilometers. 
D) none of the above 
A) 3/4 meter. 
B) 10.3 meters. 
C) 5.6 kilometers. 
D) none of the above

Question 12

When a suction cup sticks to a wall it is

Accepted Answer

A) pulled to the wall by the vacuum. 
B) pushed to the wall by the atmosphere. 
C) both of these 
D) neither of these 
A) pulled to the wall by the vacuum. 
B) pushed to the wall by the atmosphere. 
C) both of these 
D) neither of these

Question 13

Which of the following bodies is comprised mostly of plasma?

Accepted Answer

A) Earth 
B) Moon 
C) Sun 
D) all of the above 
E) none of the above 
A) Earth 
B) Moon 
C) Sun 
D) all of the above 
E) none of the above

Question 14

About how high can water at sea level be theoretically lifted by a vacuum pump?

Accepted Answer

A) less than 10.3 m 
B) 10.3 m 
C) more than 10.3 m 
A) less than 10.3 m 
B) 10.3 m 
C) more than 10.3 m

Question 15

A column that extends from sea level to the top of the atmosphere contains a certain mass of air. If the column instead contained the same mass of mercury, its height would be about

Accepted Answer

A) 3/4 meter. 
B) 10.3 meters. 
C) 5.6 kilometers. 
D) none of the above 
A) 3/4 meter. 
B) 10.3 meters. 
C) 5.6 kilometers. 
D) none of the above

Question 16

The energy source responsible for molecular motions in Earth's atmosphere is

Accepted Answer

A) their own natural kinetic energy. 
B) pressure caused by the weight of air. 
C) atmospheric tides. 
D) the Sun. 
A) their own natural kinetic energy. 
B) pressure caused by the weight of air. 
C) atmospheric tides. 
D) the Sun.

Question 17

When a common fluorescent lamp is lit, the mercury vapor inside is actually in a

Accepted Answer

A) gaseous phase. 
B) liquid phase. 
C) plasma phase. 
D) solid phase. 
E) none of the above 
A) gaseous phase. 
B) liquid phase. 
C) plasma phase. 
D) solid phase. 
E) none of the above

Question 18

A spinning tossed baseball veers off course in the direction of

Accepted Answer

A) crowded streamlines. 
B) non-crowded streamlines. 
C) onward-coming streamlines. 
A) crowded streamlines. 
B) non-crowded streamlines. 
C) onward-coming streamlines.

Exam 14: Gases and Plasmas

It would be easier to pull the evacuated Magdeburg hemispheres apart if they were

As a balloon rises higher and higher into the atmosphere its

Archimedes' principle applies to

Approximately how much air is in a column 1-cm2 in cross section that extends from sea level to the top of the atmosphere?

The flight of a blimp best illustrates

Atmospheric molecules do not fly off into outer space due to

While Debbie Diver holds her breath and swims deeper and deeper beneath the water's surface, her density

The weight of air in a bathtub (about 1/3 cubic meter)is about the same as the weight of

The weight of air in a column 1-m2 in cross section that extends from sea level to the top of the atmosphere is

Inside the same room, buoyant force is greater on

A column that extends from sea level to the top of the atmosphere contains a certain mass of air. If the column instead contained the same mass of water, its height would be about

When a suction cup sticks to a wall it is

Which of the following bodies is comprised mostly of plasma?

About how high can water at sea level be theoretically lifted by a vacuum pump?

A column that extends from sea level to the top of the atmosphere contains a certain mass of air. If the column instead contained the same mass of mercury, its height would be about

The energy source responsible for molecular motions in Earth's atmosphere is

When a common fluorescent lamp is lit, the mercury vapor inside is actually in a

A spinning tossed baseball veers off course in the direction of

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Approximately how much air is in a column 1-cm²in cross section that extends from sea level to the top of the atmosphere?

The weight of air in a column 1-m² in cross section that extends from sea level to the top of the atmosphere is