Question 1

The airspeed of an airplane is 100 km/h. When it is caught in a 100-km/h right-angled crosswind, its speed across the ground below is about

Accepted Answer

A) 0 km/h. 
B) 100 km/h. 
C) 140 km/h. 
D) 200 km/h. 
E) more than 200 km/h.
If the airplane changes direction and flies at 60 degrees to the wind, its ground speed will
F)decrease.
G)remain the same.
H)increase. 
A) 0 km/h. 
B) 100 km/h. 
C) 140 km/h. 
D) 200 km/h. 
E) more than 200 km/h.
If the airplane changes direction and flies at 60 degrees to the wind, its ground speed will
F)decrease.
G)remain the same.
H)increase.

Question 2

The diameter of a mercury atom, atomic number 80, compared with the diameter of a zirconium atom, atomic number 40, is approximately

Accepted Answer

A) half as large 
B) twice as large 
C) the same size
Because the 
D) atomic masses are not appreciably different. 
E) greater nuclear charge pulls the orbiting electrons closer.
F)atomic number and atomic diameter are directly proportional to each other.
G)atomic number and atomic diameter are inversely proportional to each other. 
A) half as large 
B) twice as large 
C) the same size
Because the 
D) atomic masses are not appreciably different. 
E) greater nuclear charge pulls the orbiting electrons closer.
F)atomic number and atomic diameter are directly proportional to each other.
G)atomic number and atomic diameter are inversely proportional to each other.

Question 3

A hydrogen atom consists of a single proton and a single electron. If the distance between the proton and the electron were doubled, the electric force would be

Accepted Answer

A) 1/4 as much, 
B) 1/2 as much, 
C) twice as much, 
D) not enough information to say,
And if instead the distance between the electron and proton were halved, the electric force would be 
E) 1/4 as much.
F)1/2 as much.
G)twice as much.
H)four times as much.
I)not enough information to say 
A) 1/4 as much, 
B) 1/2 as much, 
C) twice as much, 
D) not enough information to say,
And if instead the distance between the electron and proton were halved, the electric force would be 
E) 1/4 as much.
F)1/2 as much.
G)twice as much.
H)four times as much.
I)not enough information to say

Question 4

Figure T-1
  
-The boy plays "solitary seesaw" as shown. We can understand this by imagining that he has an invisible partner who is actually at the

Accepted Answer

A) fulcrum. 
B) right end of the board. 
C) rotational inertia of the seesaw as a whole. 
D) seesaw's center of gravity.
Since the seesaw is not rotating, we can say that 
E) the net torque on the seesaw is zero.
F)potential energy and kinetic energy are equal to each other.
G)the boy's and the seesaw's centers of gravity must be equal distances from the fulcrum.
H)the boy and the seesaw must have the same weight. 
A) fulcrum. 
B) right end of the board. 
C) rotational inertia of the seesaw as a whole. 
D) seesaw's center of gravity.
Since the seesaw is not rotating, we can say that 
E) the net torque on the seesaw is zero.
F)potential energy and kinetic energy are equal to each other.
G)the boy's and the seesaw's centers of gravity must be equal distances from the fulcrum.
H)the boy and the seesaw must have the same weight.

Question 5

If the polar ice caps melted and flowed toward the equator, the rotation of Earth would tend to

Accepted Answer

A) decrease in angular speed, 
B) be unchanged, 
C) increase in angular speed,
With the result that the day would be 
D) slightly longer. 
E) slightly shorter.
F)unaffected. 
A) decrease in angular speed, 
B) be unchanged, 
C) increase in angular speed,
With the result that the day would be 
D) slightly longer. 
E) slightly shorter.
F)unaffected.

Question 6

A boulder is thrown into a deep lake. As it sinks deeper and deeper in the water the buoyant force

Accepted Answer

A) increases. 
B) decreases. 
C) remains the same.
This is because the 
D) pressure increases with greater depth. 
E) pressure decreases with greater depth.
F)volume and weight of displaced water are the same at any depth. 
A) increases. 
B) decreases. 
C) remains the same.
This is because the 
D) pressure increases with greater depth. 
E) pressure decreases with greater depth.
F)volume and weight of displaced water are the same at any depth.

Question 7

Figure G-3
  
-A satellite follows an elliptical orbit about a planet as shown. The speed of the satellite is greatest when the satellite is in position

Accepted Answer

A) A. 
B) B. 
C) C. 
D) D. 
E) same at all points in its orbit.
At which position is there no component of force in the direction of the satellite's instantaneous velocity?
F)A
G)B
H)C
I)D
J)A component of force exists in the direction of instantaneous velocity at every point along the orbital path. 
A) A. 
B) B. 
C) C. 
D) D. 
E) same at all points in its orbit.
At which position is there no component of force in the direction of the satellite's instantaneous velocity?
F)A
G)B
H)C
I)D
J)A component of force exists in the direction of instantaneous velocity at every point along the orbital path.

Question 8

Figure G-2
  
-Suppose masses M1 and M2 are falling toward planet M under gravitational influence. We would find that M1 falls

Accepted Answer

A) faster than M2,  
B) as fast as M2,  
C) slower than M2,
With the result that 
D) ocean tides are formed on M. 
E) the distance between M1 and M2 increases.
F)the distance between M1 and M2 decreases.
G)the distance between M1 and M2 remains unchanged, but the distance between M and M1 decreases. 
A) faster than M2,  
B) as fast as M2,  
C) slower than M2,
With the result that 
D) ocean tides are formed on M. 
E) the distance between M1 and M2 increases.
F)the distance between M1 and M2 decreases.
G)the distance between M1 and M2 remains unchanged, but the distance between M and M1 decreases.

Question 9

Figure A-5
  
-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, krypton (atomic no. 36)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, krypton (atomic no. 36)would yield energy by nuclear 
E) fission
F)fusion
G)both
H)neither
I)not enough information to say.

Question 10

The property of objects to resist a change in motion is called

Accepted Answer

A) friction, 
B) velocity, 
C) inertia, 
D) acceleration, 
E) gravity,
And it is measured by its
F)speed.
G)velocity.
H)mass.
I)all of these. 
A) friction, 
B) velocity, 
C) inertia, 
D) acceleration, 
E) gravity,
And it is measured by its
F)speed.
G)velocity.
H)mass.
I)all of these.

Question 11

Matter in the plasma state is commonly found in

Accepted Answer

A) dry ice. 
B) molten lava. 
C) the flame of a high-temperature welding torch.
Compared to solids, liquids, and gases in the universe, plasma is the most 
D) abundant. 
E) rare.
F)there is no valid estimate at this time. 
A) dry ice. 
B) molten lava. 
C) the flame of a high-temperature welding torch.
Compared to solids, liquids, and gases in the universe, plasma is the most 
D) abundant. 
E) rare.
F)there is no valid estimate at this time.

Question 12

All things being practically equal, if the energy content in gasoline were doubled, then the distance a car should travel per liter of gasoline should

Accepted Answer

A) be no different. 
B) double. 
C) quadruple.
If the low-energy and high-energy fuels are burned in the same time, then compared to the POWER produced by combustion of the low-energy gasoline, the power produced by the combustion of the higher-energy gasoline should 
D) be no different 
E) double
F)quadruple 
A) be no different. 
B) double. 
C) quadruple.
If the low-energy and high-energy fuels are burned in the same time, then compared to the POWER produced by combustion of the low-energy gasoline, the power produced by the combustion of the higher-energy gasoline should 
D) be no different 
E) double
F)quadruple

Question 13

When steam condenses, the H2O

Accepted Answer

A) releases energy 
B) absorbs energy 
C) neither of these
When water freezes, the H2O 
D) releases energy. 
E) absorbs energy.
F)neither of these. 
A) releases energy 
B) absorbs energy 
C) neither of these
When water freezes, the H2O 
D) releases energy. 
E) absorbs energy.
F)neither of these.

Question 14

Figure V-2
  
-A block is pulled across a floor as shown in the vector diagram. The greater component of F is in the

Accepted Answer

A) horizontal direction, 
B) vertical direction,Although both horizontal and vertical components would be of equal magnitude if vector F were 
C) horizontal. 
D) vertical. 
E) at an angle of 45°. 
A) horizontal direction, 
B) vertical direction,Although both horizontal and vertical components would be of equal magnitude if vector F were 
C) horizontal. 
D) vertical. 
E) at an angle of 45°.

Question 15

Figure M-3
  
-A rock is sinking to the bottom of the lake. The buoyant force is greater at point

Accepted Answer

A) A. 
B) B. 
C) C. 
D) equal at all levels.
This follows from the fact that 
E) pressure increases with depth.
F)the same weight of water is displaced at any depth.
G)the water is appreciably more compressed with increasing depth.
H)position B provides a moderate answer, between the extremes. 
A) A. 
B) B. 
C) C. 
D) equal at all levels.
This follows from the fact that 
E) pressure increases with depth.
F)the same weight of water is displaced at any depth.
G)the water is appreciably more compressed with increasing depth.
H)position B provides a moderate answer, between the extremes.

Question 16

A stone submerged in water displaces a volume of water

Accepted Answer

A) greater than volume of stone. 
B) less than volume of stone. 
C) equal to volume of stone.
If the stone were of low-enough density to be able to float, it would displace a volume of water 
D) greater than its volume. 
E) less than its volume.
F)equal to its volume. 
A) greater than volume of stone. 
B) less than volume of stone. 
C) equal to volume of stone.
If the stone were of low-enough density to be able to float, it would displace a volume of water 
D) greater than its volume. 
E) less than its volume.
F)equal to its volume.

Question 17

Figure E-5
  
-A small bead slides without friction along the wire shown. It begins at A and slides by gravity past B, which doesn't touch the rest of the wire. The potential energy of the bead is greatest at point

Accepted Answer

A) A, 
B) B, 
C) C, 
D) D, 
E) E,
And the bead has its maximum momentum at point
F)A.
G)B.
H)C.
I)D.
10)E. 
A) A, 
B) B, 
C) C, 
D) D, 
E) E,
And the bead has its maximum momentum at point
F)A.
G)B.
H)C.
I)D.
10)E.

Question 18

If we had the most powerful optical microscope in the world stacked on top of the next most powerful optical microscope in the world, we would

Accepted Answer

A) probably see atoms, 
B) probably be able to photograph atoms even if we couldn't see them, 
C) still not be able to see an atom,
Because atoms are 
D) invisible. 
E) visible when illuminated with infrared light.
F)material particles which have mass and size.
G)smaller than the wavelengths of visible light. 
A) probably see atoms, 
B) probably be able to photograph atoms even if we couldn't see them, 
C) still not be able to see an atom,
Because atoms are 
D) invisible. 
E) visible when illuminated with infrared light.
F)material particles which have mass and size.
G)smaller than the wavelengths of visible light.

Question 19

Radioactive by-products mostly occur when atomic nuclei

Accepted Answer

A) break apart, 
B) combine together,
And radioactive by-products are a chief result of atomic nuclei 
C) breaking apart. 
D) combining together. 
E) doing neither. 
A) break apart, 
B) combine together,
And radioactive by-products are a chief result of atomic nuclei 
C) breaking apart. 
D) combining together. 
E) doing neither.

Question 20

Figure N-7
  
-Ball A is dropped from rest as ball B is shot out horizontally. Ball A hits the ground

Accepted Answer

A) before ball B. 
B) after ball B. 
C) at the same time as ball B.
This is because 
D) ball A has less distance to travel. 
E) ball B is acted upon by an additional force.
F)both balls fall the same vertical distance with the same acceleration. 
A) before ball B. 
B) after ball B. 
C) at the same time as ball B.
This is because 
D) ball A has less distance to travel. 
E) ball B is acted upon by an additional force.
F)both balls fall the same vertical distance with the same acceleration.

Exam 37: Systems of Measurement

The airspeed of an airplane is 100 km/h. When it is caught in a 100-km/h right-angled crosswind, its speed across the ground below is about

The diameter of a mercury atom, atomic number 80, compared with the diameter of a zirconium atom, atomic number 40, is approximately

A hydrogen atom consists of a single proton and a single electron. If the distance between the proton and the electron were doubled, the electric force would be

Figure T-1 -The boy plays "solitary seesaw" as shown. We can understand this by imagining that he has an invisible partner who is actually at the

If the polar ice caps melted and flowed toward the equator, the rotation of Earth would tend to

A boulder is thrown into a deep lake. As it sinks deeper and deeper in the water the buoyant force

Figure G-3 -A satellite follows an elliptical orbit about a planet as shown. The speed of the satellite is greatest when the satellite is in position

Figure G-2 -Suppose masses M1 and M2 are falling toward planet M under gravitational influence. We would find that M1 falls

Figure A-5 -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 property of objects to resist a change in motion is called

Matter in the plasma state is commonly found in

All things being practically equal, if the energy content in gasoline were doubled, then the distance a car should travel per liter of gasoline should

When steam condenses, the H2O

Figure V-2 -A block is pulled across a floor as shown in the vector diagram. The greater component of F is in the

Figure M-3 -A rock is sinking to the bottom of the lake. The buoyant force is greater at point

A stone submerged in water displaces a volume of water

Figure E-5 -A small bead slides without friction along the wire shown. It begins at A and slides by gravity past B, which doesn't touch the rest of the wire. The potential energy of the bead is greatest at point

If we had the most powerful optical microscope in the world stacked on top of the next most powerful optical microscope in the world, we would

Radioactive by-products mostly occur when atomic nuclei

Figure N-7 -Ball A is dropped from rest as ball B is shot out horizontally. Ball A hits the ground

About Science

Newtons First Law of Motion: Inertia

Linear Motion

Newtons Second Law of Motion

Newtons Third Law of Motion: Action and Reaction

Momentum

Energy

Rotational Motion

Gravity

Projectile and Satellite Motion

Atomic Nature of Matter

Solids

Liquids

Gases and Plasmas

Temperature, Heat, and Expansion

Heat Transfer

Change of Phase

Thermodynamics

Vibrations and Waves

Sound

Musical Sounds

Electrostatics

Electric Current

Magnetism

Electromagnetic Induction

Properties of Light

Color

Reflection and Refraction

Light Waves

Light Emission

Light Quanta

The Atom and the Quantum

Atomic Nucleus and Radioactivity

Nuclear Fission and Fusion

Special Theory of Relativity

General Theory of Relativity

Filters

Figure G-2 -Suppose masses M₁ and M₂ are falling toward planet M under gravitational influence. We would find that M₁ falls

When steam condenses, the H₂O