Question 1

The air in a closed room has

Accepted Answer

A) mass, 
B) energy, 
C) weight, 
D) all of these, 
E) none of these,
And the greater the rate of molecular motion in the air, the greater the
F)temperature.
G)molecular kinetic energy.
H)air pressure.
I)all of these.
10)none of these. 
A) mass, 
B) energy, 
C) weight, 
D) all of these, 
E) none of these,
And the greater the rate of molecular motion in the air, the greater the
F)temperature.
G)molecular kinetic energy.
H)air pressure.
I)all of these.
10)none of these.

Question 2

Dew on the grass results from

Accepted Answer

A) fast-moving molecules. 
B) evaporation. 
C) open-structured water crystals. 
D) the pressure of the atmosphere on water vapor. 
E) the slowing down of fast-moving water molecules.
As dew forms on the grass, energy is
F)given to the grass by the water vapor.
G)given up by the grass to the water vapor. 
A) fast-moving molecules. 
B) evaporation. 
C) open-structured water crystals. 
D) the pressure of the atmosphere on water vapor. 
E) the slowing down of fast-moving water molecules.
As dew forms on the grass, energy is
F)given to the grass by the water vapor.
G)given up by the grass to the water vapor.

Question 3

Orbital electrons do not spiral into the atomic nucleus because of

Accepted Answer

A) electrical forces, 
B) the wave nature of the electrons, 
C) angular momentum, 
D) the discreteness of energy levels, 
E) quantum mechanical laws,
And the electrons have discrete radii from the nucleus because
F)the circumference of each orbit is an integral multiple of the electron wavelength.
G)electrical forces act over discrete distances.
H)energy levels themselves are discrete. 
A) electrical forces, 
B) the wave nature of the electrons, 
C) angular momentum, 
D) the discreteness of energy levels, 
E) quantum mechanical laws,
And the electrons have discrete radii from the nucleus because
F)the circumference of each orbit is an integral multiple of the electron wavelength.
G)electrical forces act over discrete distances.
H)energy levels themselves are discrete.

Question 4

If the pencil you are holding were 10 times as long and 10 times as wide, its surface area would be multiplied by

Accepted Answer

A) 10 
B) 100 
C) 1000 
D) 10,000 
E) none of these
And its volume would be multiplied by
F)10.
G)100.
H)1000.
I)10,000.
10)none of these. 
A) 10 
B) 100 
C) 1000 
D) 10,000 
E) none of these
And its volume would be multiplied by
F)10.
G)100.
H)1000.
I)10,000.
10)none of these.

Question 5

If the Moon were covered with water, it would have

Accepted Answer

A) one high tidal bulge, 
B) two high tidal bulges, 
C) three high tidal bulges, 
D) no tidal bulges,
Which would follow from 
E) the same reason that Earth has two high tidal bulges.
F)no centrifugal force tide would exist on the Moon.
G)the Moon being much less massive than Earth.
H)the center of mass of Earth-Moon system that lies halfway to the Moon. 
A) one high tidal bulge, 
B) two high tidal bulges, 
C) three high tidal bulges, 
D) no tidal bulges,
Which would follow from 
E) the same reason that Earth has two high tidal bulges.
F)no centrifugal force tide would exist on the Moon.
G)the Moon being much less massive than Earth.
H)the center of mass of Earth-Moon system that lies halfway to the Moon.

Question 6

There are about as many atoms of air in our lungs at any moment as there are breaths of air in the atmosphere of

Accepted Answer

A) a large auditorium. 
B) a large city. 
C) North America. 
D) the whole world.
If all the atoms exhaled by Isaac Newton in his last dying breath are still in the atmosphere, then we breathe about one of those atoms with each 
E) single breath.
F)day of breathing.
G)month of breathing.
H)year of breathing.
I)none, for some people may inhale Newton's atoms occasionally while others may take years. 
A) a large auditorium. 
B) a large city. 
C) North America. 
D) the whole world.
If all the atoms exhaled by Isaac Newton in his last dying breath are still in the atmosphere, then we breathe about one of those atoms with each 
E) single breath.
F)day of breathing.
G)month of breathing.
H)year of breathing.
I)none, for some people may inhale Newton's atoms occasionally while others may take years.

Question 7

The ratio of the circumference of any circle to its diameter is π. Similarly, the ratio of the energy of any photon to its frequency is

Accepted Answer

A) h, Planck's constant, 
B) uncertain, unlike π, 
C) the wavelength of the photon, 
D) c, the photon's speed,
Which is 
E) a basic constant of nature setting a lower limit on the smallness of things.
F)a basic constant of nature setting an upper limit on the speed of things. 
A) h, Planck's constant, 
B) uncertain, unlike π, 
C) the wavelength of the photon, 
D) c, the photon's speed,
Which is 
E) a basic constant of nature setting a lower limit on the smallness of things.
F)a basic constant of nature setting an upper limit on the speed of things.

Question 8

A very massive body A and a less massive body B move toward each other under the influence of gravity. Compared to the force on A, the force on B is

Accepted Answer

A) greater. 
B) the same. 
C) less.
As A and B get closer and closer, each experiences an increase in 
D) velocity. 
E) acceleration.
F)force.
G)all of these.
H)none of these. 
A) greater. 
B) the same. 
C) less.
As A and B get closer and closer, each experiences an increase in 
D) velocity. 
E) acceleration.
F)force.
G)all of these.
H)none of these.

Question 9

Figure A-3
  
-If the mass per nucleon in atomic nuclei varied as shown in the fictitious plot above, then nuclear energy would be available from the element iron (atomic no. 26)by the process of nuclear

Accepted Answer

A) fission. 
B) fusion. 
C) both. 
D) neither.
Accordingly, hydrogen would yield energy by nuclear 
E) fission
F)fusion
G)both
H)neither
I)not enough information to say 
A) fission. 
B) fusion. 
C) both. 
D) neither.
Accordingly, hydrogen would yield energy by nuclear 
E) fission
F)fusion
G)both
H)neither
I)not enough information to say

Question 10

The "after glow" from some clock faces is caused by atoms

Accepted Answer

A) being excited, 
B) vibrating at frequencies greater than a million billion times per second, 
C) remaining for some time in a state of excitation before de-exciting,
And materials exhibiting this property are called 
D) fluorescent. 
E) phosphorescent.
F)incandescent.
G)luminescent. 
A) being excited, 
B) vibrating at frequencies greater than a million billion times per second, 
C) remaining for some time in a state of excitation before de-exciting,
And materials exhibiting this property are called 
D) fluorescent. 
E) phosphorescent.
F)incandescent.
G)luminescent.

Question 11

Figure A-2
  
-If the mass per nucleon in atomic nuclei varied as shown in the fictitious plot above, then nuclear energy would be available from the element iron (atomic no. 26)by the process of nuclear

Accepted Answer

A) fission. 
B) fusion. 
C) both. 
D) neither.
Accordingly, uranium would yield energy by nuclear 
E) fission
F)fusion
G)both
H)neither 
A) fission. 
B) fusion. 
C) both. 
D) neither.
Accordingly, uranium would yield energy by nuclear 
E) fission
F)fusion
G)both
H)neither

Question 12

Figure E-6
  
-In the hydraulic device shown, when the small piston is pushed down 10 cm with a force of 10 N, the large piston is raised 1 cm. This means that the large piston is capable of lifting

Accepted Answer

A) 10 N, 
B) 100 N, 
C) 1000 N, 
D) any amount of weight,
Which illustrates 
E) that impulse is equal to a change in momentum.
F)(F × d)input = (F × d)output.
G)Newton's second law.
H)that the stored energy that a body possesses may be transformed into other forms of energy. 
A) 10 N, 
B) 100 N, 
C) 1000 N, 
D) any amount of weight,
Which illustrates 
E) that impulse is equal to a change in momentum.
F)(F × d)input = (F × d)output.
G)Newton's second law.
H)that the stored energy that a body possesses may be transformed into other forms of energy.

Question 13

Figure V-8
  
-Which of the sailboats shown sails fastest in its forward direction?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) None sails forward.
It is interesting to note that the force of the wind impact is 
E) nonexistent on each sail.
F)greatest on 1.
G)greatest on 2.
H)greatest on 3. 
A) 1 
B) 2 
C) 3 
D) None sails forward.
It is interesting to note that the force of the wind impact is 
E) nonexistent on each sail.
F)greatest on 1.
G)greatest on 2.
H)greatest on 3.

Question 14

A 200-N weight hangs motionless from a string that is attached to the ceiling. The net force acting on the weight is

Accepted Answer

A) zero, 
B) 100 N, 
C) 200 N,
And if the string breaks, the net force acting on the weight will be 
D) zero. 
E) 100 N.
F)200 N. 
A) zero, 
B) 100 N, 
C) 200 N,
And if the string breaks, the net force acting on the weight will be 
D) zero. 
E) 100 N.
F)200 N.

Question 15

If the handle of a tuning fork is held solidly against a table, its resulting sound is

Accepted Answer

A) louder, 
B) softer, 
C) doesn't change,
And as a result of this, the length of time the fork keeps vibrating 
D) increases. 
E) decreases.
F)doesn't change. 
A) louder, 
B) softer, 
C) doesn't change,
And as a result of this, the length of time the fork keeps vibrating 
D) increases. 
E) decreases.
F)doesn't change.

Question 16

Provided that in each case heat input is the same, boiling takes place more quickly

Accepted Answer

A) at sea level. 
B) in a valley. 
C) in the mountains.
This is because 
D) increased pressure on the surface of a liquid lowers its boiling point. 
E) decreased pressure on the surface of a liquid lowers its boiling point.
F)water always boils quickest at sea level. 
A) at sea level. 
B) in a valley. 
C) in the mountains.
This is because 
D) increased pressure on the surface of a liquid lowers its boiling point. 
E) decreased pressure on the surface of a liquid lowers its boiling point.
F)water always boils quickest at sea level.

Question 17

A 10-kg block has twice the density of water. Compared to 10 kg of water, its volume is

Accepted Answer

A) as much, 
B) half as much, 
C) twice as much,
And when suspended in water its mass will seem to be 
D) 0 kg. 
E) 3)33 kg.
F)5 kg.
G)10 kg.
H)none of these. 
A) as much, 
B) half as much, 
C) twice as much,
And when suspended in water its mass will seem to be 
D) 0 kg. 
E) 3)33 kg.
F)5 kg.
G)10 kg.
H)none of these.

Question 18

A skydiver jumps through the air from a high-flying plane. As her velocity of fall increases, the net force acting on her

Accepted Answer

A) increases also, 
B) decreases, 
C) remains unchanged,
And her acceleration 
D) increases. 
E) decreases.
F)remains unchanged. 
A) increases also, 
B) decreases, 
C) remains unchanged,
And her acceleration 
D) increases. 
E) decreases.
F)remains unchanged.

Question 19

The net force that acts on a 100-N freely falling body is

Accepted Answer

A) zero, 
B) 9.8 N, 
C) 100 N,
And its acceleration is 
D) zero. 
E) 9.8 m/s2.
F)100 m/s2. 
A) zero, 
B) 9.8 N, 
C) 100 N,
And its acceleration is 
D) zero. 
E) 9.8 m/s2.
F)100 m/s2.

Question 20

Two identical buckets are filled to the brim, one with water and the other with alcohol. The liquid pressure at the bottom of the bucket of water is

Accepted Answer

A) less than the pressure at the bottom of the bucket of alcohol. 
B) more than the pressure at the bottom of the bucket of alcohol. 
C) equal to the pressure at the bottom of the bucket of alcohol.
This is because 
D) both containers are of the same volume. 
E) alcohol is less dense than water.
F)both containers are filled to the same depth. 
A) less than the pressure at the bottom of the bucket of alcohol. 
B) more than the pressure at the bottom of the bucket of alcohol. 
C) equal to the pressure at the bottom of the bucket of alcohol.
This is because 
D) both containers are of the same volume. 
E) alcohol is less dense than water.
F)both containers are filled to the same depth.

Exam 37: Systems of Measurement

The air in a closed room has

Dew on the grass results from

Orbital electrons do not spiral into the atomic nucleus because of

If the pencil you are holding were 10 times as long and 10 times as wide, its surface area would be multiplied by

If the Moon were covered with water, it would have

There are about as many atoms of air in our lungs at any moment as there are breaths of air in the atmosphere of

The ratio of the circumference of any circle to its diameter is π. Similarly, the ratio of the energy of any photon to its frequency is

A very massive body A and a less massive body B move toward each other under the influence of gravity. Compared to the force on A, the force on B is

Figure A-3 -If the mass per nucleon in atomic nuclei varied as shown in the fictitious plot above, then nuclear energy would be available from the element iron (atomic no. 26)by the process of nuclear

The "after glow" from some clock faces is caused by atoms

Figure A-2 -If the mass per nucleon in atomic nuclei varied as shown in the fictitious plot above, then nuclear energy would be available from the element iron (atomic no. 26)by the process of nuclear

Figure E-6 -In the hydraulic device shown, when the small piston is pushed down 10 cm with a force of 10 N, the large piston is raised 1 cm. This means that the large piston is capable of lifting

Figure V-8 -Which of the sailboats shown sails fastest in its forward direction?

A 200-N weight hangs motionless from a string that is attached to the ceiling. The net force acting on the weight is

If the handle of a tuning fork is held solidly against a table, its resulting sound is

Provided that in each case heat input is the same, boiling takes place more quickly

A 10-kg block has twice the density of water. Compared to 10 kg of water, its volume is

A skydiver jumps through the air from a high-flying plane. As her velocity of fall increases, the net force acting on her

The net force that acts on a 100-N freely falling body is

Two identical buckets are filled to the brim, one with water and the other with alcohol. The liquid pressure at the bottom of the bucket of water is

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