Question 1

A car traveling at 20 mph on a curved exit ramp has a constant velocity.

Accepted Answer

A) True 
 B)False  False

Question 2

A heavy object and a light object are dropped from rest at the same time in a vacuum.The heavier object will reach the ground

Accepted Answer

A) before the lighter object. 
B) at the same time as the lighter object. 
C) after the lighter object. 
D) It depends on the shape of the object. 
A) before the lighter object. 
B) at the same time as the lighter object. 
C) after the lighter object. 
D) It depends on the shape of the object. B

Question 3

The tendency of a moving object to remain in unchanging motion in the absence of an unbalanced force is called

Accepted Answer

A) inertia. 
B) free fall. 
C) acceleration. 
D) impulse. 
A) inertia. 
B) free fall. 
C) acceleration. 
D) impulse. A

Question 4

The weight of a 50-kg box is closest to

Accepted Answer

A) 5 N. 
B) 50 N. 
C) 500 N. 
D) 5000 N. 
A) 5 N. 
B) 50 N. 
C) 500 N. 
D) 5000 N.

Question 5

Imagine an experiment in which a 8-lb bowling ball and a 10-lb bowling ball are dropped from the fifth floor at the same time.The heavier ball will reach the ground first.

Accepted Answer

A) True 
 B)False

Question 6

If an unbalanced force applied to an object doubles, then

Accepted Answer

A) its velocity doubles. 
B) its acceleration doubles. 
C) its acceleration is cut in half. 
D) its acceleration increases by a factor of four. 
A) its velocity doubles. 
B) its acceleration doubles. 
C) its acceleration is cut in half. 
D) its acceleration increases by a factor of four.

Question 7

A block of iron is transported to the Moon.Which of the following is true?

Accepted Answer

A) both its mass and weight remain unchanged. 
B) its mass decreases, but its weight remains the same. 
C) its mass remains the same, but its weight decreases. 
D) both its mass and weight decrease. 
A) both its mass and weight remain unchanged. 
B) its mass decreases, but its weight remains the same. 
C) its mass remains the same, but its weight decreases. 
D) both its mass and weight decrease.

Question 8

The pound is an English unit of measure; its SI counterpart is the

Accepted Answer

A) newton. 
B) kilogram. 
C) joule. 
D) momentum. 
A) newton. 
B) kilogram. 
C) joule. 
D) momentum.

Question 9

If you consider the total distance and total time for a trip, you are calculating a (an)

Accepted Answer

A) instantaneous speed. 
B) constant speed. 
C) average speed. 
D) non-uniform speed 
A) instantaneous speed. 
B) constant speed. 
C) average speed. 
D) non-uniform speed

Question 10

A 250-g ball travels at a velocity of 40 m/s.Its momentum is

Accepted Answer

A) 4 kg·m/s. 
B) 10 kg·m/s. 
C) 160 kg·m/s. 
D) 10,000 kg·m/s. 
A) 4 kg·m/s. 
B) 10 kg·m/s. 
C) 160 kg·m/s. 
D) 10,000 kg·m/s.

Question 11

Everything that happens in the universe can be traced to interactions of

Accepted Answer

A) matter and gravity. 
B) light and matter. 
C) four fundamental forces. 
D) gravity waves and light. 
A) matter and gravity. 
B) light and matter. 
C) four fundamental forces. 
D) gravity waves and light.

Question 12

The newton is a unit of

Accepted Answer

A) motion. 
B) energy. 
C) power. 
D) force. 
A) motion. 
B) energy. 
C) power. 
D) force.

Question 13

When you roll a ball across the floor, it comes to a stop because you are no longer exerting a force on it.

Accepted Answer

A) True 
 B)False

Question 14

The momentum of an object remains the same unless an unbalanced force acts on it.

Accepted Answer

A) True 
 B)False

Question 15

The reason a moving object slows down is that its force of motion gradually runs out.

Accepted Answer

A) True 
 B)False

Question 16

Astronauts experience a weightless condition when they are in orbit.

Accepted Answer

A) True 
 B)False

Question 17

The force of gravity near the surface of Earth is 9.8 m/s2.

Accepted Answer

A) True 
 B)False

Question 18

In the equation   represents

Accepted Answer

A) average speed. 
B) instantaneous speed. 
C) final speed. 
D) constant speed. 
A) average speed. 
B) instantaneous speed. 
C) final speed. 
D) constant speed.

Question 19

An object accelerates when it slows or its direction of movement changes.

Accepted Answer

A) True 
 B)False

Question 20

Ignoring air resistance, the velocity of a falling object

Accepted Answer

A) is constant. 
B) is constantly increasing. 
C) increases for a while, then becomes constant. 
D) depends on the mass of the object. 
A) is constant. 
B) is constantly increasing. 
C) increases for a while, then becomes constant. 
D) depends on the mass of the object.

Exam 2: Motion

A car traveling at 20 mph on a curved exit ramp has a constant velocity.

A heavy object and a light object are dropped from rest at the same time in a vacuum.The heavier object will reach the ground

The tendency of a moving object to remain in unchanging motion in the absence of an unbalanced force is called

The weight of a 50-kg box is closest to

Imagine an experiment in which a 8-lb bowling ball and a 10-lb bowling ball are dropped from the fifth floor at the same time.The heavier ball will reach the ground first.

If an unbalanced force applied to an object doubles, then

A block of iron is transported to the Moon.Which of the following is true?

The pound is an English unit of measure; its SI counterpart is the

If you consider the total distance and total time for a trip, you are calculating a (an)

A 250-g ball travels at a velocity of 40 m/s.Its momentum is

Everything that happens in the universe can be traced to interactions of

The newton is a unit of

When you roll a ball across the floor, it comes to a stop because you are no longer exerting a force on it.

The momentum of an object remains the same unless an unbalanced force acts on it.

The reason a moving object slows down is that its force of motion gradually runs out.

Astronauts experience a weightless condition when they are in orbit.

The force of gravity near the surface of Earth is 9.8 m/s2.

In the equation represents

An object accelerates when it slows or its direction of movement changes.

Ignoring air resistance, the velocity of a falling object

What Is Science

Energy

Heat and Temperature

Wave Motions and Sound

Electricity

Light

Atoms and Periodic Properties

Chemical Bonds

Chemical Reactions

Water and Solutions

Organic Chemistry

Nuclear Reactions

The Universe

The Solar System

Earth in Space

Rocks and Minerals

Plate Tectonics

Building Earths Surface

Shaping Earths Surface

Geologic Time

The Atmosphere of Earth

Weather and Climate

Earths Waters

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The force of gravity near the surface of Earth is 9.8 m/s².