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WorksheetsChapter 10 Force and Motion
Total questions: 26
Worksheet time: 13mins
Name
Class
Date
1.
What is the SI unit for force?
a)
meter
b)
meters per second
c)
newton
d)
watt
2.
When the forces acting on an object are balanced, the net force on the object is
a)
less than 0 N
b)
equal to 0 N
c)
more than 0 N
d)
100 N
3.
When the forces acting on an object are unbalanced, the net force on the object is
a)
more or less than 0 N
b)
equal to 0 N
c)
more or less than 0 W
d)
equal to 0 W
4.
Friction acts
a)
in the same direction as motion
b)
only on objects that are not in motion
c)
in the opposite direction as motion
d)
only on objects that are in fluids
5.
The friction on an object moving through water or air is
a)
static friction
b)
rolling friction
c)
sliding friction
d)
fluid friction
6.
The amount of gravity between two objects depends on their masses and the
a)
distance between them
b)
friction between them
c)
total velocity of the objects
d)
net force of the objects
7.
The force of gravity on an object is known as its
a)
friction
b)
acceleration
c)
mass
d)
weight
8.
Air resistance acts in what direction on a falling object?
a)
upward
b)
sideways
c)
downward
d)
backward
9.
A (an) _____ causes an object's motion to change.
a)
zero force
b)
inertia
c)
balanced force
d)
unbalanced force
10.
Newton's third law says that for every action there is an equal and opposite reaction. This law says that forces
a)
do not act on moving objects
b)
only act on moving objects
c)
come in action-reaction pairs
d)
act only in the opposite direction of motion
11.
A push or a pull is a
a)
force
b)
free fall
c)
mass
d)
velocity
12.
Friction between two objects that are not moving is ______ friction
a)
free fall
b)
mass
c)
static
d)
weight
13.
If gravity is the only force acting on an object, the object is in
a)
weight
b)
velocity
c)
mass
d)
free fall
14.
The measure of the amount of matter in an object is the object's
a)
force
b)
mass
c)
velocity
d)
weight
15.
The momentum of an object depends on its mass and its
a)
force
b)
static
c)
velocity
d)
weight
16.
The momentum of an object is its mass times its velocity. What is the momentum of Ball A?
a)
1 kg*m/s
b)
2 kg*m/s
c)
3 kg*m/s
d)
4 kg*m/s
17.
The momentum of an object is its mass times its velocity. What is the momentum of Ball A?
a)
0 kg*m/s
b)
1 kg*m/s
c)
5 kg*m/s
d)
10 kg*m/s
18.
If Ball A hits Ball B, what will the total momentum of the two balls be after the collision?
a)
Less than the total momentum before the collision
b)
Equal to the total momentum before the collision
c)
more than the total momentum before the collision
d)
none of these
19.
What is the object's speed at 3 seconds?
a)
9.8 m/s
b)
19.6 m/s
c)
29.4 m/s
d)
39.2 m/s
20.
This graph shows an object in free fall. What is the only force acting on this object?
a)
air resistance
b)
friction
c)
gravity
d)
terminal velocity
21.
You exert a force of 120 N to the right on a desk. Your friend exerts a force of 150 N in the same direction.
What is the net force of this situation?
What is the net force of this situation?
a)
270 N to the right
b)
30 N to the left
c)
0 N (balanced)
22.
You exert a force of 120 N to the right on a desk. Your friend exerts a force of 150 N in the opposite direction (to the left).
What is the net force of this situation?
What is the net force of this situation?
a)
270 N to the right
b)
30 N to the left
c)
0 N (balanced)
23.
Which type of friction applies to a wheel on a skateboard?
a)
static friction
b)
sliding friction
c)
rolling friction
d)
fluid friction
24.
Which type of friction applies to a person swimming in a pool?
a)
static friction
b)
sliding friction
c)
rolling friction
d)
fluid friction
25.
Which type of friction applies to a person pushing a heavy box?
a)
static friction
b)
sliding friction
c)
rolling friction
d)
fluid friction
26.
Which type of friction applies to a child ice skating?
a)
static friction
b)
sliding friction
c)
rolling friction
d)
fluid friction
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