Question 1

Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has twice as much

Accepted Answer

A) inertia. 
B) mass. 
C) volume. 
D) all of the above 
E) none of the above 
A) inertia. 
B) mass. 
C) volume. 
D) all of the above 
E) none of the above

Question 2

When you push your desk to the right, friction on the desk acts toward

Accepted Answer

A) the left. 
B) the right. 
C) at right angles to your push. 
D) none of the above 
A) the left. 
B) the right. 
C) at right angles to your push. 
D) none of the above

Question 3

The speed of a vertically-thrown ball at the top of its path is

Accepted Answer

A) zero. 
B) 10 m/s2. 
C) between zero and 10 m/s2. 
D) dependent on the mass of the ball. 
A) zero. 
B) 10 m/s2. 
C) between zero and 10 m/s2. 
D) dependent on the mass of the ball.

Question 4

One-half second after starting from rest, a freely falling object will have a speed of about

Accepted Answer

A) 5 m/s. 
B) 10 m/s. 
C) 15 m/s. 
D) none of the above 
A) 5 m/s. 
B) 10 m/s. 
C) 15 m/s. 
D) none of the above

Question 5

A motor scooter undergoes acceleration when it

Accepted Answer

A) gains speed. 
B) decreases speed. 
C) changes direction. 
D) all of the above. 
A) gains speed. 
B) decreases speed. 
C) changes direction. 
D) all of the above.

Question 6

The amount of friction that occurs when two blocks slide against each other depends on

Accepted Answer

A) how much they are pressed together. 
B) the "stickiness" of atoms on their surfaces. 
C) both 
D) none of the above 
A) how much they are pressed together. 
B) the "stickiness" of atoms on their surfaces. 
C) both 
D) none of the above

Question 7

A 50-N object falling in air experiences 50 N of air resistance. The amount of net force on the falling object is

Accepted Answer

A) 0 N. 
B) 25 N. 
C) 50 N. 
D) 100 N. 
A) 0 N. 
B) 25 N. 
C) 50 N. 
D) 100 N.

Question 8

A free-falling object has a speed of 30 m/s at one instant. Exactly 2 seconds later its speed will be

Accepted Answer

A) the same. 
B) 40 m/s. 
C) 50 m/s. 
D) more than 50 m/s. 
A) the same. 
B) 40 m/s. 
C) 50 m/s. 
D) more than 50 m/s.

Question 9

A bucket of cement is raised by a rope at constant speed at a construction site. The upward force on the bucket supplied by the rope is

Accepted Answer

A) greater than the force of gravity. 
B) equal to the force of gravity. 
C) less than the force of gravity. 
A) greater than the force of gravity. 
B) equal to the force of gravity. 
C) less than the force of gravity.

Question 10

An object is pulled with three forces: one at 20 N to the right, another at 40 N to the right, and the third at 30 N to the left. The net force is

Accepted Answer

A) 60 N to the right. 
B) 60 N to the left. 
C) 30 N to the left. 
D) none of the above 
A) 60 N to the right. 
B) 60 N to the left. 
C) 30 N to the left. 
D) none of the above

Question 11

During each second of free fall, the speed of an object

Accepted Answer

A) increases by the same amount. 
B) changes by increasing amounts each second. 
C) remains constant. 
D) doubles each second. 
A) increases by the same amount. 
B) changes by increasing amounts each second. 
C) remains constant. 
D) doubles each second.

Question 12

Distinguish between the concepts of mass and weight. Which is more fundamental, and why?

Accepted Answer

Mass is the quantity of matter in an obj

Question 13

If a non-rotating object has no acceleration, then we can say for certain that it is

Accepted Answer

A) at rest. 
B) moving at constant nonzero velocity. 
C) in mechanical equilibrium. 
D) all of the above 
E) none of the above 
A) at rest. 
B) moving at constant nonzero velocity. 
C) in mechanical equilibrium. 
D) all of the above 
E) none of the above

Question 14

When Galileo rolled a ball down an incline and up another incline, he found that the ball rolled nearly to

Accepted Answer

A) its initial height. 
B) halfway its original height. 
C) three quarters its original height. 
D) higher than its original height. 
A) its initial height. 
B) halfway its original height. 
C) three quarters its original height. 
D) higher than its original height.

Question 15

An object travels 8 m in the 1st second of travel, 8 m again during the 2nd second of travel, and 8 m again during the 3rd second. Its acceleration is

Accepted Answer

A) 0 m/s2. 
B) 5 m/s2. 
C) 8 m/s2. 
D) 10 m/s2. 
E) more than 10 m/s2. 
A) 0 m/s2. 
B) 5 m/s2. 
C) 8 m/s2. 
D) 10 m/s2. 
E) more than 10 m/s2.

Question 16

Whenever the net force on an object is zero, its acceleration

Accepted Answer

A) may be zero. 
B) is zero. 
C) and velocity are the same. 
D) none of the above 
A) may be zero. 
B) is zero. 
C) and velocity are the same. 
D) none of the above

Question 17

Science greatly advanced when Galileo favored

Accepted Answer

A) philosophical discussions. 
B) experiment. 
C) non-mathematical thinking. 
D) none of the above 
A) philosophical discussions. 
B) experiment. 
C) non-mathematical thinking. 
D) none of the above

Question 18

Carefully distinguish between the concepts of velocity and acceleration, with an example of each.

Accepted Answer

Velocity is a measure of how fast someth

Question 19

A man weighing 800 N stands at rest on two bathroom scales so that one scale shows a reading of 500 N. The reading on the other scale is

Accepted Answer

A) 200 N. 
B) 300 N. 
C) 400 N. 
D) 800 N. 
E) none of the above 
A) 200 N. 
B) 300 N. 
C) 400 N. 
D) 800 N. 
E) none of the above

Question 20

If a ball rolls down an inclined plane and picks up 4 m/s each second it rolls, its acceleration is

Accepted Answer

A) one half of 4 m/s. 
B) one half of 4 m/s2. 
C) 4 m/s2. 
D) 10 m/s2. 
A) one half of 4 m/s. 
B) one half of 4 m/s2. 
C) 4 m/s2. 
D) 10 m/s2.

Exam 1: Patterns of Motion and Equilibrium

Compared with a 1-kg block of solid iron, a 2-kg block of solid iron has twice as much

When you push your desk to the right, friction on the desk acts toward

The speed of a vertically-thrown ball at the top of its path is

One-half second after starting from rest, a freely falling object will have a speed of about

A motor scooter undergoes acceleration when it

The amount of friction that occurs when two blocks slide against each other depends on

A 50-N object falling in air experiences 50 N of air resistance. The amount of net force on the falling object is

A free-falling object has a speed of 30 m/s at one instant. Exactly 2 seconds later its speed will be

A bucket of cement is raised by a rope at constant speed at a construction site. The upward force on the bucket supplied by the rope is

An object is pulled with three forces: one at 20 N to the right, another at 40 N to the right, and the third at 30 N to the left. The net force is

During each second of free fall, the speed of an object

Distinguish between the concepts of mass and weight. Which is more fundamental, and why?

If a non-rotating object has no acceleration, then we can say for certain that it is

When Galileo rolled a ball down an incline and up another incline, he found that the ball rolled nearly to

An object travels 8 m in the 1st second of travel, 8 m again during the 2nd second of travel, and 8 m again during the 3rd second. Its acceleration is

Whenever the net force on an object is zero, its acceleration

Science greatly advanced when Galileo favored

Carefully distinguish between the concepts of velocity and acceleration, with an example of each.

A man weighing 800 N stands at rest on two bathroom scales so that one scale shows a reading of 500 N. The reading on the other scale is

If a ball rolls down an inclined plane and picks up 4 m/s each second it rolls, its acceleration is

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Timereading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: the Nature of Science

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