# Chapter 4: Newton's Second Law Of Motion, Force And Acceleration

91 Questions | Total Attempts: 329  Settings  • 1.
Which has the greater mass?
• A.

A king-size pillow

• B.

An automobile battery

• C.

) neither – both have the same

• 2.
A kilogram is a measure of an object's
• A.

Weight

• B.

Force

• C.

Mass

• D.

Size

• 3.
Compared to a 1-kg block of solid iron, a 2-kg block of solid iron has twice as much
• A.

Inertia

• B.

Mass

• C.

Volume

• D.

All of these

• E.

None of these

• 4.
Compared to a 1-kg block of solid iron, a 2-kg block of solid iron has the same
• A.

Mass

• B.

Volume

• C.

Weight

• D.

All of these

• E.

None of these

• 5.
• A.

• B.

The gravitational attraction force between you and the Earth

• C.

A property of mechanical equilibrium

• D.

All of these

• 6.
If one object has twice as much mass as another object, it also has twice as much
• A.

Inertia

• B.

Velocity

• C.

Acceleration due to gravity

• D.

Volume

• E.

All of these

• 7.
Compared to the mass of a certain object on Earth, the mass of the same object on the moon is
• A.

One sixth as much

• B.

The same

• C.

Six times as much

• D.

Zero

• 8.
Strange as it may seem, it is just as hard to accelerate a car on a level surface on the moon as it is here on the Earth. This is because
• A.

The mass of the car is independent of gravity

• B.

The weight of the car is independent of gravity

• C.

Nonsense! A car is much more easily accelerated on the moon than on the Earth

• 9.
A ride on a roller-coaster car containing 6 passengers takes 3 minutes. Neglecting friction, a similar ride with 12 passengers aboard would take
• A.

1.5 minutes

• B.

3 minutes

• C.

6 minutes

• D.

18 minutes

• 10.
The newton is a unit of
• A.

Force

• B.

Mass

• C.

Density

• D.

Inertia

• 11.
In which case would you have the largest mass of gold? If your chunk of gold weighed 1 N on the
• A.

Moon

• B.

Earth

• C.

Planet Jupiter

• 12.
A rock weighs 30 N on Earth. A second rock weighs 30 N on the moon. Which of the two rocks has the greater mass?
• A.

The one on Earth

• B.

The one on the moon

• C.

They have the same mass

• D.

Not enough information to say

• 13.
An object's weight may properly be expressed in units of
• A.

Meters

• B.

Kilograms

• C.

Newtons

• D.

Cubic centimeters

• 14.
A force is a vector quantity because it has both
• A.

Magnitude and direction

• B.

Mass and acceleration

• C.

Action and reaction counterparts

• 15.
A 10-kg brick and a 1-kg book are dropped in a vacuum. The force of gravity on the 10-kg brick is
• A.

The same as the force on the 1-kg book

• B.

10 times as much

• C.

One-tenth as much

• D.

Zero

• 16.
An object is propelled along a straight-line path by a force. If the net force were doubled, the object's acceleration would be
• A.

Half as much

• B.

The same

• C.

Twice as much

• D.

Four times as much

• E.

None of these

• 17.
If an object's mass is decreasing while a constant force is applied to the object, the acceleration
• A.

Decreases

• B.

Increases

• C.

Remains the same

• 18.
An object is propelled along a straight-line path in space by a force. If the mass of the object somehow becomes twice as much, its acceleration
• A.

• B.

Doubles

• C.

Stays the same

• D.

Halves

• E.

None of these

• 19.
An object is pulled northward by a force of 10 N and at the same time another force of 15 N pulls it southward. The magnitude of the resultant force on the object is
• A.

0 N

• B.

5 N

• C.

25 N

• D.

150 N

• 20.
The force of friction on a sliding object is 10 newtons. The applied force needed to maintain a constant velocity is
• A.

More than 10 N

• B.

Less than 10 N

• C.

10 N

• 21.
A 10-N falling object encounters 4 N of air resistance. The net force on the object is
• A.

0 N

• B.

4 N

• C.

6 N

• D.

10 N

• E.

None of these

• 22.
A 10-N falling object encounters 10 N of air resistance. The net force on the object is
• A.

0 N

• B.

4 N

• C.

6 N

• D.

10 N

• E.

None of these

• 23.
An apple weighs 1 N. When held at rest above your head, the net force on the apple is
• A.

0 N

• B.

0.1 N

• C.

1 N

• D.

9.8 N

• E.

None of these

• 24.
An apple at rest weighs 1 N. The net force on the apple when it is in free fall is
• A.

0 N

• B.

0.1 N

• C.

1 N

• D.

9.8 N

• E.

None of these

• 25.
Which has zero acceleration? An object
• A.

At rest

• B.

Moving at constant velocity

• C.

In mechanical equilibrium

• D.

All of these

• E.

None of these

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