Question 1

Mary passes Mike from behind while bicycling. As she passes him,

Accepted Answer

A)  the two have different speeds and different velocities. 
B)  Mike turns into a hippopotamus. 
C)  the two have different speeds but the same velocities. 
D)  the two have the same speeds but different velocities. 
E)  the two have the same speeds and the same velocities. 
A)  the two have different speeds and different velocities. 
B)  Mike turns into a hippopotamus. 
C)  the two have different speeds but the same velocities. 
D)  the two have the same speeds but different velocities. 
E)  the two have the same speeds and the same velocities.

Question 2

The figure shows a ball tied to a string and swung in a circle, clockwise. If the string suddenly breaks when the ball is in the position shown, which arrow best represents the initial direction of motion of the ball just after the string breaks?

Accepted Answer

A)  Arrow A. 
B)  Arrow B. 
C)  Arrow C. 
D)  Arrow D. 
E)  Arrow E. 
A)  Arrow A. 
B)  Arrow B. 
C)  Arrow C. 
D)  Arrow D. 
E)  Arrow E.

Question 3

What keeps the moon moving, i.e., why doesn't the moon slow down and stop?

Accepted Answer

A)  Nuclear processes operating in the central core of the moon. 
B)  It is the natural motion of every object to keep moving by itself. 
C)  Earth's gravity keeps it moving. 
D)  The sun's gravity keeps it moving. 
E)  It actually is slowing down, and will come to rest in a few thousand more years. 
A)  Nuclear processes operating in the central core of the moon. 
B)  It is the natural motion of every object to keep moving by itself. 
C)  Earth's gravity keeps it moving. 
D)  The sun's gravity keeps it moving. 
E)  It actually is slowing down, and will come to rest in a few thousand more years.

Question 4

An auto is moving at a steady 50 mph up a long straight [constant "slope"] incline. While it is on this incline,

Accepted Answer

A)  its velocity is zero but its acceleration is not zero [i.e., it does have an acceleration]. 
B)  its velocity and acceleration are both zero. 
C)  neither its velocity nor its acceleration are zero. 
D)  its acceleration is zero but its velocity is not zero. 
E)  it has the heebie- jeebies. 
A)  its velocity is zero but its acceleration is not zero [i.e., it does have an acceleration]. 
B)  its velocity and acceleration are both zero. 
C)  neither its velocity nor its acceleration are zero. 
D)  its acceleration is zero but its velocity is not zero. 
E)  it has the heebie- jeebies.

Question 5

In twice the time, an object will attain a speed that is

Accepted Answer

A)  four times as fast. 
B)  12 times as fast. 
C)  eight times as fast. 
D)  16 times as fast. 
E)  twice as fast. 
A)  four times as fast. 
B)  12 times as fast. 
C)  eight times as fast. 
D)  16 times as fast. 
E)  twice as fast.

Question 6

In what kind of path would the planets move if no force acted on them?

Accepted Answer

A)  Larger elliptical orbits. 
B)  Parabolas, like a thrown rock. 
C)  Straight line with an acceleration of 10 m/sec2. 
D)  Straight line with no acceleration. 
E)  They would continue in their present orbits, since they already have no force on them. 
A)  Larger elliptical orbits. 
B)  Parabolas, like a thrown rock. 
C)  Straight line with an acceleration of 10 m/sec2. 
D)  Straight line with no acceleration. 
E)  They would continue in their present orbits, since they already have no force on them.

Question 7

The figure represents a multiple- flash photo of two balls moving to the right, and shows both balls at several numbered times. In the figure,

Accepted Answer

A)  the upper ball, which has a larger speed, passes the lower ball. 
B)  the lower ball, which has a larger acceleration, passes the upper ball. 
C)  the upper ball, which has a larger acceleration, passes the lower ball. 
D)  the lower ball, which has a larger speed, passes the upper ball. 
E)  neither ball passes the other ball during their motion. 
A)  the upper ball, which has a larger speed, passes the lower ball. 
B)  the lower ball, which has a larger acceleration, passes the upper ball. 
C)  the upper ball, which has a larger acceleration, passes the lower ball. 
D)  the lower ball, which has a larger speed, passes the upper ball. 
E)  neither ball passes the other ball during their motion.

Question 8

While a rock is falling straight down it has

Accepted Answer

A)  an unchanging speed and an unchanging velocity. 
B)  a changing speed and a changing velocity. 
C)  a changing speed and a constant velocity. 
D)  an unchanging speed and a changing velocity. 
A)  an unchanging speed and an unchanging velocity. 
B)  a changing speed and a changing velocity. 
C)  a changing speed and a constant velocity. 
D)  an unchanging speed and a changing velocity.

Question 9

While a rock is falling straight down with negligible air resistance, it has

Accepted Answer

A)  an increasing speed. 
B)  a decreasing speed. 
C)  an unchanging speed. 
D)  zero speed. 
E)  None of the above. 
A)  an increasing speed. 
B)  a decreasing speed. 
C)  an unchanging speed. 
D)  zero speed. 
E)  None of the above.

Question 10

You ride a motor scooter 8 km in 15 minutes. Your [average] speed is

Accepted Answer

A)  2 km/hr. 
B)  48 km/hr. 
C)  16 km/hr. 
D)  4 km/hr. 
E)  32 km/hr. 
A)  2 km/hr. 
B)  48 km/hr. 
C)  16 km/hr. 
D)  4 km/hr. 
E)  32 km/hr.

Question 11

Which of these is not accelerating?

Accepted Answer

A)  a car while it is rounding a corner at constant [or steady] speed 
B)  a car while it is moving at unchanging speed up a straight [or steady] incline 
C)  a car going over the crest of a rounded hill at a constant speed 
D)  a car starting up from rest 
E)  actually all of these cars are accelerating 
A)  a car while it is rounding a corner at constant [or steady] speed 
B)  a car while it is moving at unchanging speed up a straight [or steady] incline 
C)  a car going over the crest of a rounded hill at a constant speed 
D)  a car starting up from rest 
E)  actually all of these cars are accelerating

Mary passes Mike from behind while bicycling. As she passes him,

The figure shows a ball tied to a string and swung in a circle, clockwise. If the string suddenly breaks when the ball is in the position shown, which arrow best represents the initial direction of motion of the ball just after the string breaks?

What keeps the moon moving, i.e., why doesn't the moon slow down and stop?

An auto is moving at a steady 50 mph up a long straight [constant "slope"] incline. While it is on this incline,

In twice the time, an object will attain a speed that is

In what kind of path would the planets move if no force acted on them?

The figure represents a multiple- flash photo of two balls moving to the right, and shows both balls at several numbered times. In the figure,

While a rock is falling straight down it has

While a rock is falling straight down with negligible air resistance, it has

You ride a motor scooter 8 km in 15 minutes. Your [average] speed is

Which of these is not accelerating?

The Way of Science: Experience and Reason

Atoms: the Nature of Things

Why Things Move As They Do

Newtons Universe

Conservation of Energy: You Cant Get Ahead

Second Law of Thermodynamics: and You Cant Even Break Even

Light and Electromagnetism

Electromagnetism Radiation and Global Climate Change

The Special Theory of Relativity

The General Theory of Relativity and the New Cosmology

The Quantum Idea

The Quantum Universe

The Nucleus and Radioactivity: an New Force

Fusion and Fission: and a New Energy

The Energy Challenge

Quantum Fields: Relativity Meets the Quantum

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Exam 3: How Things Move: Galileo Asks the Right Questions

Mary passes Mike from behind while bicycling. As she passes him,

The figure shows a ball tied to a string and swung in a circle, clockwise. If the string suddenly breaks when the ball is in the position shown, which arrow best represents the initial direction of motion of the ball just after the string breaks?

What keeps the moon moving, i.e., why doesn't the moon slow down and stop?

An auto is moving at a steady 50 mph up a long straight [constant "slope"] incline. While it is on this incline,

In twice the time, an object will attain a speed that is

In what kind of path would the planets move if no force acted on them?

The figure represents a multiple- flash photo of two balls moving to the right, and shows both balls at several numbered times. In the figure,

While a rock is falling straight down it has

While a rock is falling straight down with negligible air resistance, it has

You ride a motor scooter 8 km in 15 minutes. Your [average] speed is

Which of these is not accelerating?

The Way of Science: Experience and Reason

Atoms: the Nature of Things

Why Things Move As They Do

Newtons Universe

Conservation of Energy: You Cant Get Ahead

Second Law of Thermodynamics: and You Cant Even Break Even

Light and Electromagnetism

Electromagnetism Radiation and Global Climate Change

The Special Theory of Relativity

The General Theory of Relativity and the New Cosmology

The Quantum Idea

The Quantum Universe

The Nucleus and Radioactivity: an New Force

Fusion and Fission: and a New Energy

The Energy Challenge

Quantum Fields: Relativity Meets the Quantum

Filters