Forces in One Dimension
Practice Test
1.
A(n) __________ force acts on an object only by touching it.
a.
tactile
b.
inert
c.
field
d.
contact
Hint
2.
In Figure 4-16c, if the box has a mass of 6.0 kg, what will the normal force of the table on the box be?
a.
9.8 N
b.
110 N
c.
50 N
d.
8.8 N
Hint
3.
For the situation in Figure 4-5a, if
F
1
= 200 N and
F
2
= 500 N, what would
F
net
be?
a.
300 N to the left
b.
700 N to the right
c.
700 N to the left
d.
300 N to the right
Hint
4.
Newton's third law of motion states that __________.
a.
the acceleration of an object is proportional to the net force exerted on the object
b.
a force is needed to keep an object moving
c.
all forces come in pairs
d.
objects remain either at rest or continue moving in a straight line with constant speed only if the net force on that object is zero
Hint
5.
On Earth, a scale shows that you weigh 490 N. What is your mass?
a.
22 kg
b.
100 kg
c.
75 kg
d.
50 kg to 5.0×10
1
kg
Hint
6.
Which of the following statements is true?
a.
Weight is the measure of the amount of matter in an object.
b.
Weight can change when acceleration due to gravity changes.
c.
Weight is a measure of inertia.
d.
Mass is a force.
Hint
