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WorksheetsForces Review
Total questions: 100
Worksheet time: 1hrs 25mins
Name
Class
Date
1.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
2.
Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
3.
"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
4.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
5.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
6.
The force of attraction between all matter.
a)
inertia
b)
friction
c)
net force
d)
gravity
7.
When all the forces on an object are equal and opposite, & the net force is zero, that's...
a)
balanced forces
b)
unbalanced forces
c)
terminal velocity
d)
reaction forces
8.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
9.
The net force on a ball thrown in outer space is... (you are no longer touching the ball)
a)
there is none
b)
forward
c)
down and backward
d)
forward and down
10.
Gravity is increased with...
a)
greater mass & shorter distance
b)
greater mass & farther distance
c)
lower mass & shorter distance
d)
lower mass & farther distance
11.
Mass x acceleration = ?
a)
force
b)
inertia
c)
momentum
d)
velocity
12.
In the picture, the blocks are flying out of the truck based on which of Newton's laws?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 6th Law
13.
In the picture, the vehicle will move because of...
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 9th Law
14.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third
d)
fourth
15.
With unbalanced forces, the object will move in the direction that the _______ force is being applied.
a)
larger
b)
smaller
c)
equal
16.
You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.
a)
20N
b)
40N
c)
10N
d)
70N
17.
Which has more Inertia?
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
18.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
19.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion.
d)
Friction
20.
What can a force do?
a)
all of the above
b)
start a motion
c)
stop a motion
d)
change the direction of the motion
21.
Which law explains why when you put a book on a table the table pushes on the book
a)
3rd law
b)
4th law
c)
1st law
d)
2nd law
22.
friction is a force that acts
a)
in the same direction as the force
b)
opposite to the direction of the force
c)
with the force
d)
towards the direction of the force
23.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
24.
A person is pushed forward into their seatbelt when a car stops. Which of Newton's laws explains this motion?
a)
1st law
b)
2nd law
c)
2 and 3 law
d)
3rd law
25.
When air rushes out of a balloon and it moves upward. This is an example of which Law of Motion.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
26.
A crumpled piece of paper hits the ground before a flat sheet of paper because
a)
the acceleration of gravity is greater on the crumpled paper.
b)
there is more air resistance against the flat paper.
c)
the crumpled paper is more massive
d)
the crumpled paper is less massive.
27.
What is the definition of "weight"?
a)
the force in which gravity pulls on an object
b)
the time it takes to get on a ride
c)
the amount of matter in an object
d)
the size of an object
28.
If the mass of an object is 1000kg on Earth, what is it's mass on the moon?
a)
10kg
b)
100kg
c)
1000kg
d)
10,000kg
29.
An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
Conservation of momentum
30.
Forces that cancel each other are called __________ forces
a)
inactivated
b)
balanced
c)
null
d)
neutral
31.
Newton's first law of motion states that __________.
a)
when a force is applied on an object, there is an equal force applied by the object in the opposite direction
b)
hen a force acts on an object, its acceleration is in the same direction as the force
c)
an object will remain at rest or keep moving with a constant velocity unless a force acts on it
d)
cceleration is calculated by dividing the force exerted on an object by the mass of the object
32.
Newton's second law of motion states that __________
a)
an object will remain at rest or keep moving in a straight line with constant speed unless a force acts on it
b)
he force on an object can be found by dividing its mass by its acceleration
c)
acceleration is calculated by dividing the force exerted on an object by the mass of the object, and that when a force acts on an object, its acceleration is in the same direction as the force
d)
when a force is applied on an object, there is an equal force applied by the object in the opposite direction
33.
Newton’s third law of motion involves the interactions of
a)
one object and one force
b)
one object and two forces
c)
two objects and one force.
d)
two objects and two forces.
34.
When an object is at rest/stationary
a)
There are no forces acting on it
b)
There are forces acting on it but these forces are balanced
c)
There is just one force acting on it, gravity
35.
Newton's second law of motion states that an unbalanced force that acts upon an object causes it to:
a)
accelerate
b)
not accelerate (keep the same velocity
c)
have a velocity
36.
The term inertia means an object's resistance to motion; which of Newton's laws involves inertia?
a)
first
b)
second
c)
third
d)
fourth
37.
If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?
a)
the cannonball
b)
the baseball
c)
The balls land at the same time.
d)
the ball with the larger volume
38.
A sled sliding on a flat, icy surface with a constant velocity is best described by
a)
Newton’s first law of motion for objects at rest.
b)
Newton’s first law of motion for objects in motion.
c)
Newton’s second law of motion.
d)
Newton’s third law of motion.
39.
How does Newton’s third law explain how a rocket takes off?
a)
The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same.
b)
The rocket is at rest until ignition.
c)
The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force.
40.
In order to be ____ forces, their effects must cancel each other out and not cause a change in an object's motion.
a)
balanced
b)
strong
c)
weak
d)
normal
41.
A ____ force is the total force felt by an object.
a)
sum
b)
net
c)
strong
d)
balanced
42.
____ is the rubbing force that acts against motion between two touching surfaces.
a)
Acceleration
b)
Normal force
c)
Momentum
d)
Friction
43.
If the forces acting on an object are unbalanced, the net force is NOT ____.
a)
normal
b)
strong
c)
weak
d)
zero
44.
Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
45.
A picture is hanging on a wall and does not move.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
46.
the tendency of an object to resist change in motion
a)
inertia
b)
road rage
c)
motion
d)
all the same
47.
What law states an object at rest stays at rest unless acted upon by a net force or a moving object at a constant speed will continue to move in a straight line at a constant speed?
a)
First
b)
Second
c)
Third
d)
Fourth
48.
What law describes how acceleration, mass and net force are related?
a)
First
b)
Second
c)
Third
d)
Fourth
49.
Which law states that when one object exerts a force on a second object, the second object exerts a force on the first object?
a)
First
b)
Second
c)
Third
d)
Fourth
50.
When you kick a ball across a feild and it hits someone in the face and they fly backwards
a)
Action=Reaction
b)
Speed
c)
Motion
d)
Air
51.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
52.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the net force?
a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
53.
A balanced force has
a)
no net force
b)
some net force
c)
a wee bit of net force
d)
a lot of net force
54.
-------->17N 17N<--------
a)
0N
b)
17N
c)
34N
d)
49N
55.
A rocket with less ________ will have a greater acceleration.
a)
Mass
b)
At Rest
c)
Reaction
d)
Resist
56.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
57.
A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
58.
A bus hits a bug and the bug splatters on the windshield, which force is greater?
a)
The Bus
b)
The Bug
c)
They're the same
d)
Gravity acting on the bus
59.
When a heavy football player and a light one run into each other, who exerts more force?
a)
The heavy one
b)
The light one
c)
They are equal
d)
there is no such thing as force
60.
As an object falls freely in a vacuum, its
a)
velocity increases
b)
acceleration increases
c)
both a and b
d)
none of the above
61.
In the absence of air resistance, objects fall at constant
a)
speed
b)
velocity
c)
acceleration
d)
all of the above
62.
Suppose an object is in free fall. Each second the object falls
a)
the same distance as in the second before.
b)
a larger distance than in the second before.
c)
with the same instantaneous speed.
d)
with the same average speed.
63.
A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always
a)
in the direction of motion
b)
opposite its velocity
c)
directed downward
d)
directed upward
64.
Two objects - one with mass m and the other with mass 2m - are released from rest at the same height. Which object hits the ground first?
a)
mass m
b)
mass 2m
c)
both objects hit the ground at the same time
d)
unable to determine with information given
65.
What force keeps the moon in orbit around the Earth?
a)
Weight
b)
Mass
c)
Gravity
d)
Magnetism
66.
Which of the following forces is a force that acts on an object by touching the object?
a)
electricity
b)
friction
c)
gravity
d)
magnetism
67.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
68.
What is the unit of force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
69.
More force is needed to move __________ objects than to move light objects.
a)
big
b)
heavy
c)
square
d)
round
70.
Forces can make objects start moving, _________, ________, or stop moving.
a)
speed up, friction
b)
push, slow down
c)
speed up, slow down
d)
push, pull
71.
Forces can change the ________ of a moving object.
a)
direction
b)
push
c)
pull
d)
friction
72.
Two forces that act on an object without touching it are:
a)
gravity and friction
b)
gravity and magnetism
c)
friction and magnetism
d)
pushes and pulls
73.
The measure of the pull of gravity on an object is its ___________.
a)
force
b)
volume
c)
height
d)
weight
74.
When forces are balanced an object can be stationary or
a)
slowing down
b)
speeding up
c)
moving at a constant speed
d)
accelerating
75.
What is the name of the force that opposes gravity when you are standing still?
a)
Weight
b)
Electrostatic
c)
Normal
d)
Magnetism
76.
A force can cause the following changes except ________________.
a)
speed up a moving object
b)
stop a moving object
c)
change the size of an object
d)
change the mass of an object
77.
If the forces on an object are unbalanced, can the object be at rest?
a)
Yes
b)
No
78.
If the forces on an object are unbalanced, can the object move at a constant speed?
a)
yes
b)
no
79.
_______ is a force.
a)
Volume
b)
Weight
c)
Mass
d)
Energy
80.
You apply a force of 15N to a soccer ball. The force the soccer ball applies to your foot is...
a)
equal to 15N
b)
bigger than 15N
c)
smaller than 15N
d)
impossible to determine without knowing the mass
81.
If something is at rest, there are no forces acting on it.
a)
true
b)
false
82.
If a box is moving to the left, which way is the force of friction?
a)
left
b)
right
c)
up
d)
down
83.
If there are forces on an object, that object must be accelerating.
a)
true
b)
false
84.
Which car is accelerating?
a)
A car that is not moving
b)
A ar that rounds a curve at a constant speed
c)
A car traveling at a constant speed
d)
A car that has a set speed of 60mph
85.
The scientist who is most famous for developing the Laws of Motion is _____.
a)
Albert Einstein
b)
Stephen Hawking
c)
Sir Isaac Newton
d)
Galileo Galilei
86.
If an object has only one force acting on it, it can be at rest.
a)
True
b)
False
87.
What is the minimum number of forces necessary to create equilibrium?
a)
1
b)
2
c)
3
d)
4
88.
If something is hanging from the ceiling by a string, does the normal force act on it?
a)
yes
b)
no
89.
If something is sitting on a table, does the normal force act on it?
a)
yes
b)
no
90.
Why do spaceships continue to move in outer space even with their engines off?
a)
they have hidden engines
b)
they use solar panels
c)
they were already in motion so they will stay in motion
d)
the space wind pushes them forward
91.
When two forces act on each other, what do you know about those forces?
a)
they are equal and opposite
b)
the more massive object causes the bigger force
c)
the more massive object causes the smaller force
d)
I don't know anything about any forces.
92.
The inertia of an object depends on its
a)
velocity
b)
mass
c)
momentum
d)
height
93.
In what direction does the normal force act?
a)
up
b)
down
c)
perpendicular to the surface
d)
parallel to the surface
94.
When an object is at rest, what do you know about the forces on that object?
a)
nothing
b)
there are no forces acting on it
c)
the forces acting on it are balanced
d)
the forces acting on it are unbalanced
95.
The force that comes from a surface and acts perpendicular to the surface is called
a)
Natural Force
b)
Net Force
c)
Normal Force
d)
Negotiable Force
96.
If a box is sitting at rest on a ramp, in which direction is the force of friction going?
a)
straight up
b)
straight down
c)
up the ramp
d)
down the ramp
97.
If two forces are in the same direction, they cancel each other out. True or false?
a)
true
b)
false
98.
Forces are needed to start motion.
a)
True
b)
False
99.
Forces are needed to maintain motion
a)
True
b)
False
100.
If ΣF = 0, the object is
a)
only at rest
b)
only moving at a constant speed
c)
accelerating
d)
either at rest or moving at a constant speed
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