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WorksheetsEND OF UNIT 3 ASSESSMENT
Total questions: 150
Worksheet time: 2hrs 19mins
Name
Class
Date
1.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced
a)
12 N Right No
b)
4 N Left No
c)
12 N Right Yes
d)
4 N Left Yes
2.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
3.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
Nothing
4.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
5.
Which one is balanced?
a)
top
b)
bottom
c)
both
6.
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
7.
What is the standard unit force is measured in?
a)
N
b)
lbs
c)
g
d)
m/s
8.
What is Sliding Friction?
a)
Opposes submarines in the water and airplanes in the air
b)
Opposes the dirrection of an 0bject as it slides over a surface
c)
None of the above
d)
Change in shape the point of rolling contrast because of friction
9.
Define Inertia
a)
How fast an object travels
b)
A push or pull
c)
An objects resistance to a change in its motion
d)
A force that brings a body towards to center of mass of an object
10.
Frictions acts in the direction _____to the direction of the object's motion.
a)
Perpendicular
b)
Parallel
c)
Opposite
d)
Diagonal
11.
What happens to the object when the forces are not balanced?
a)
Accelerates
b)
Stays
c)
Nothing
d)
None of the above
12.
Newton's First Law of Motion, Inertia, is dependent on
a)
the speed of an object
b)
the gravitational attraction on an object
c)
the elevation of an object
d)
the mass of an object
13.
In order for an object to move,
a)
the object must have net forces of zero
b)
the object must have net forces greater than zero
c)
the object must have a gravitational attraction less than its mass
d)
the force must be greater than its mass
14.
F=ma
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
15.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
16.
A rocket in outer space continues to move.
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
17.
Determine the accelerations that result when a 12-N net force is applied to a 3-kg object.
a)
3 m/s
b)
4 ft/s
c)
13 m/s
d)
4 m/s
18.
What is the formula for force?
a)
F=M/A
b)
F=MA
c)
F=AX
d)
what is force?
19.
How many Laws does Newton have?
a)
4
b)
6
c)
1
d)
3
20.
If an object was accelerating at 10 m/s^2, and a force of 10 newtons was required to accelerate it, what was the object's mass?
a)
1 kilogram
b)
10 kilograms
c)
2 kilograms
d)
5 kilograms
21.
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
22.
What is the acceleration of a baseball if it has a mass of .5kg and hits the catcher with a force of 25N?
a)
50 m/s/s
b)
56 m/s/s
c)
40.3 m/s/s
d)
52.67 m/s/s
23.
How will this object move?
a)
It won't move.
b)
It will move to the right.
c)
It will move to the left.
d)
It will move in both directions.
24.
The sum of all forces acting on an object and direction
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
25.
Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?
a)
Balanced
b)
Unbalanced
26.
What type of force?
a)
Magnetic
b)
Gravitational
c)
Applied
d)
Normal
27.
The greater the ________ of the objects, the greater is the gravitational force.
a)
Distance
b)
Mass
c)
Speed
d)
Rotation
28.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
29.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
30.
What is Newton's Third Law?
a)
Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
b)
Force = mass x acceleration
c)
For every action there is an equal and opposite reaction
31.
What is the formula for force?
a)
F=M/A
b)
F=MA
c)
F=AX
d)
what is force?
32.
Calculate the net force of the object in the image shown.
a)
20N
b)
35N
c)
5N
d)
25N
33.
If you double the mass of an object with the same force apply on it, the acceleration will
a)
double
b)
cut in half
c)
the same
d)
zero
34.
What is the difference between mass and weight?
a)
mass is how much matter is in an object, and weight is the gravitational pull on that object
b)
mass and weight are the same
c)
weight affects how much mass is in an object
d)
weight is determined by how many atoms make up an object
35.
Which of Newton's laws are illustrated with a rocket launch?
a)
1st Law, the Law of Inertia.
b)
2nd Law, the Law of Acceleration.
c)
3rd Law, the Law of Action Reaction
d)
The Law of Conservation of Mass
36.
What is the net force?
a)
20 N
b)
0 N
c)
400 N
d)
40 N
37.
Forces that have a net force of zero Newtons
a)
Balanced force
b)
Unbalanced force
38.
Calculate the Net Force.
a)
60N, Left
b)
40N, Right
c)
0N
d)
60N, Right
39.
What is gravity?
a)
A force
b)
Energy
c)
A push
d)
All of them
40.
If an object mass =30 Kg on the Earth, what would be it's weight on Earth?
a)
30 N
b)
300 kg
c)
3000N
d)
300 N
41.
What is missing?
a)
D
b)
N
c)
W
d)
L
42.
What is the net force on the block? (click on the words to view the picture)
a)
5 Newtons up
b)
5 Newtons down
c)
15 Newtons up
d)
15 Newtons down
43.
which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
44.
What is a force that opposes motion between two surfaces?
a)
friction
b)
acceleration
c)
velocity
d)
motion
45.
Find the average speed of a train that traveled 540 km in 6 hours?
a)
80 km/h
b)
100 km/h
c)
90 kn/h
d)
3240 km/h
46.
If these boys are pulling with the same amount of force. What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
47.
<--------8N 4N-------->
a)
2N
b)
12N
c)
4N
d)
32N
48.
-------->17N 17N<--------
a)
0N
b)
17N
c)
34N
d)
49N
49.
-------->6N 12N------->
a)
6N
b)
18N
c)
72N
d)
2N
50.
__________ is the change in speed or direction of an object's motion.
a)
velocity
b)
acceleration
c)
force
d)
position
51.
What do you need to measure to find the speed of a moving car?
a)
distance and time
b)
speed and direction
c)
direction and time
d)
distance and momentum
52.
which is the unit of measure for acceleration?
a)
m/s
b)
mph
c)
m/s2
d)
km/h
53.
If these boys are pulling with the same amount of force, is it a balanced or an unbalanced force?
a)
Balanced force
b)
Unbalanced force
54.
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
55.
A person not wearing a seatbelt flies through a car window when someone slams on the breaks because the person’s body wants to remain in continuous motion even when the car stops.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
56.
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)
None of them
57.
Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
58.
a push or pull is
a)
mass
b)
force
c)
inertia
d)
gravity
59.
------->14N -------->3N -------->15N
a)
23N
b)
48N
c)
2N
d)
32N
60.
a force that brings a body towards the center of the earth or another body having mass
a)
friction
b)
inertia
c)
gravity
d)
distance
61.
The Booh-Bahs are trying to push a box of felines across the road. What force must they overcome to get the box of felines moving?
a)
newtons
b)
push
c)
friction
d)
inertia
62.
What is acceleration a change in?
a)
velocity
b)
inertia
c)
gravity
d)
force
63.
the amount of matter in an object
a)
velocity
b)
gravity
c)
meters
d)
mass
64.
An object can't move unless there is a __ causing it to move.
a)
speed
b)
force
c)
chair
d)
fork
65.
Pushing or pulling is an example of ____.
a)
force
b)
work
c)
gravity
d)
speed
66.
The force that pulls objects towards Earth.
a)
Gravity
b)
Friction
c)
Inertia
d)
Force
67.
The rate at which something is moving.
a)
Speed
b)
Velocity
c)
Average Speed
d)
Constant Speed
68.
What is Force?
a)
A Push
b)
A Pull
c)
Both a push and pull
d)
Either a push or pull
69.
A distance vs. time graph shows an object's
a)
frame of reference
b)
speed
c)
acceleration
d)
favorite food
70.
Can be measured in meters per second (m/s)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
71.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
72.
Balanced or Unbalanced
a)
balanced
b)
unbalanced
73.
By creating unequal forces on an object there will be a change in
a)
attract
b)
force
c)
gravity
d)
motion
74.
Which are examples of force
a)
A chair being pushed in
b)
A toy being kicked
c)
A ball slowing to a stop
d)
A merry-go-round being pushed
75.
Pushing in a chair is an example of...
a)
gravitational force
b)
applied force
c)
normal force
d)
friction force
76.
Leaves falling is an example of...
a)
gravitational force
b)
applied force
c)
normal force
d)
friction force
77.
What is the mass of an object on Earth that has a weight of 35N?
(a)
78.
______ is the property of matter that resists changes in motion
a)
mass
b)
acceleration
c)
gravity
d)
inertia
79.
A larger force makes a proportionally ______ acceleration
a)
inverse
b)
smaller
c)
larger
d)
unbalanced
80.
Acceleration is _________ proportional to mass
a)
inversely
b)
smaller
c)
larger
d)
unbalanced
81.
A catcher in a professional baseball game exerts of force of -65.0 N to stop a ball. If the baseball has a mass of 0.145Kg, what is its acceleration as it is being caught?
(a)
82.
What is Newton's third law?
a)
F=ma
b)
For every action, there is an equal and opposite reaction
c)
An object in motion stays in motion and an object at rest stays at rest unless acted upon by an outside force
83.
What is the definition of net force?
a)
a push or a pull that acts on an object
b)
Net force equal 0N and there is no change in the object's motion
c)
the overall force acting on an object after all the forces are combined
d)
The force does not equal 0N, the object accelerates
84.
What is the magnitude and direction of the force in the free body diagram shown?
a)
70 N right
b)
70 N left
c)
50 N right
d)
50 N left
85.
What is the magnitude and direction of the force in the free body diagram shown?
a)
20 N, no change in motion
b)
20 N right
c)
20 N left
d)
0 N , no change in motion
86.
What is the magnitude and direction of the force in the free body diagram shown?
a)
2000 N forward
b)
800 N backward
c)
1200 N forward
d)
2800 N forward
87.
What is the magnitude and direction of the force in the free body diagram shown?
a)
35 N right
b)
17 N right
c)
11 N right
d)
5 N right
88.
What is the magnitude and direction of the force in the free body diagram shown?
a)
5 N down
b)
0 N, no change in movement
c)
15 N up
d)
15 N down
89.
What is the magnitude and direction of the force in the free body diagram shown?
a)
2 N right
b)
2 N left
c)
4 N right
d)
2 N up and 2 N right
90.
When an object is moving, friction acts in the _______ direction as the motion.
a)
perpendicular
b)
same
c)
opposite
d)
precise
91.
The magnitude of the friction force depends on the force pushing the surfaces together.
a)
True
b)
False
92.
A type of friction that occurs when air pushes against a moving object it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity
93.
Which of the following could cause an acceleration?
a)
A balance between two forces
b)
A balance between three forces
c)
An imbalance between two forces
d)
Zero forces
94.
Which of the following is always true?
a)
Fnet = ma
b)
Fnet = m + a
c)
Fnet = m - a
d)
Fnet = m/a
95.
A child pulls on a toy with a force of 25 N to the right. Another child pulls the toy with 15 N to the left. The net force is:
a)
1.7 N to the right
b)
1.7 N to the left
c)
10 N to the right
d)
10 N to the left
96.
Gravity pulls an object down with 49 N of force and a rope pulls the object up with 50 N of force. What is the net force?
a)
1 N upward
b)
1 N downward
c)
0.98 N upward
d)
0.98 N downward
97.
A book rests on a table. The normal force points:
a)
Up
b)
Down
c)
Left
d)
Right
98.
A box is pushed left with 35 N and right with 40 N of force. The box has a mass of 5 kg. What is the acceleration?
a)
5 m/s2
b)
1 m/s2
c)
25 m/s2
d)
8 m/s2
99.
What is 'drag' another name for?
a)
dressing up
b)
air resistance
c)
friction
d)
weight
100.
Name two quantities that are vectors.
a)
force and speed
b)
speed and acceleration
c)
force and acceleration
d)
mass and weight
101.
What are balanced forces?
a)
forces of the same size, in opposite directions
b)
the same size in the same direction
c)
forces in opposite directions
d)
forces at right angles to each other
102.
Is the car
a)
Stationary
b)
Moving at constant speed
c)
Accelerating
d)
Decelerating
103.
Is the car
a)
Stationary
b)
Moving at constant speed
c)
Accelerating
d)
Decelerating
104.
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 resultant force?
a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
105.
Two features of a vector?
a)
Size and direction
b)
Speed and distance
c)
Quantity and units
d)
Amount and magnitude
106.
The unit of force is...
a)
m/s
b)
m
c)
N
d)
kg
107.
What is the resultant force?
a)
40 N, Left
b)
0 N, Balanced
c)
400 N, Right
d)
40 N, Right
108.
What is the resultant force?
a)
400 N, Up
b)
400 N, Down
c)
800 N, Up
d)
800 N, Down
109.
What is the resultant force?
a)
17 N, Left
b)
6N, Right
c)
11N , Left
d)
12N, Left
110.
What is the resultant force?
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
111.
What Unit do we Measure Force in?
a)
Newtons
b)
Joules
c)
Force
d)
Don't know
112.
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
113.
With unbalanced forces, the object will move in the direction that the _______ force is being applied.
a)
larger
b)
smaller
c)
equal
114.
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
115.
A person is pushed forward into their seatbelt when a car stops
a)
1st
b)
2nd
c)
2 and 3
d)
3rd
116.
What is the SI unit for measuring force?
a)
Newtons
b)
Pounds
c)
Carls
d)
Isaacs
117.
If the mass of an object on Earth is 18 grams, what would the mass of the same object be on the Moon?
a)
18 g
b)
4 g
c)
0 g
d)
32 g
118.
If two forces are in the same direction, they cancel each other out. True or false?
a)
true
b)
false
119.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
120.
Keep in mind F=MA
If you are pushing a 1000 kg car at 0.5 m/s2, how many newtons would that be?
If you are pushing a 1000 kg car at 0.5 m/s2, how many newtons would that be?
a)
2000 N
b)
60N
c)
500 N
d)
12 N
121.
1000 kg is the...
a)
mass
b)
weight
c)
force
d)
acceleration
122.
What is the magnitude (size) and direction of the net force?
a)
21 N to the Left
b)
3 N to the Left
c)
21 N to the Right
d)
3 N to the Right
123.
What is the magnitude (size) and direction of the net force?
a)
10 N to the Right
b)
10 N to the Left
c)
0 N
d)
8 N to the Left
124.
What is the magnitude (size) and direction of the net force?
a)
14 N Down
b)
14 N Up
c)
6 N Up
d)
6 N Down
125.
What is the magnitude (size) and direction of the net force?
a)
15 N to the left
b)
15 N to the right
c)
1 N to the left
d)
1 N to the right
126.
What is the net force needed to accelerate a 66 kg skier at 2 m/sec2?
a)
132 N
b)
33 N
c)
58.8 N
d)
.030 N
127.
Which law is why a shotgun kicks your shoulder when the shell is fired?
a)
Law 1
b)
Law 2
c)
Law 3
128.
Which law explains why it takes more force to move a truck than to move a bike at the same speed?
a)
Law 1
b)
Law 2
c)
Law 3
129.
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
130.
Any time the forces are unbalanced, an object will remain at rest. True or false?
a)
true
b)
false
131.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
132.
If these boys are pulling with the same amount of force. What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
133.
If a ball of cheese is fired into frictionless space, the amount of force needed to keep it going equals
a)
twice the force with which it was fired
b)
the same amount of force with which it was fired
c)
1/2 the force with which it was fired
d)
zero, since no force is requires to keep it moving.
134.
One object has twice as much mass as another object. The first object also has also twice as much...
a)
velocity
b)
gravitational acceleration
c)
inertia
d)
all of these
135.
If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
136.
If you are an astronaut slowly drifting away from the space station, you might be able to drift back to the station by throwing a 555-kg tool rapidly in the direction that you are traveling (away from the station).Please choose from one of the following options.
a)
True
b)
False
137.
When a large truck pushes a small car with a given force, the small car is applying an equal and opposite force on the truck.
a)
True
b)
False
138.
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
139.
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.
140.
A person in car slides to the right when going through a very sharp left turn on the highway.
a)
1st Law
b)
2nd Law
c)
3rd Law
141.
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.
142.
What is friction?
a)
A pull or push
b)
How much matter is in an object
c)
A force that when something rubs against another
d)
Won’t do anything on any object’s motion
143.
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
144.
For every action there is a equal and opposite...
a)
action
b)
movement
c)
re-action
d)
Newtons law of inertia
145.
What law of motion does this picture represent
a)
Newtons law of gravity
b)
Newtons 1st law
c)
Newtons 4th law
d)
Newtons 3rd law
146.
What Newtons law does this picture represent
a)
Newtons 2nd law
b)
Law of gravity
c)
Newtons 1st law
d)
Newtons 5th law
147.
Mass is a measure of an object's inertia. Objects with greater mass have a greater inertia; objects with less mass have less inertia.
a)
true
b)
false
148.
Baseball pushes glove leftwards. What is the re-action
a)
The glove pushes the baseball rightward.
b)
The glove pushes the baseball leftward
c)
It stays still
d)
The glove pushes the baseball upward
149.
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
150.
If lil Wayne, who is an alien, weighs 578 Newtons on Earth and 96 Newtons on the moon, this means that his...
a)
mass is greater on earth.
b)
mass is greater on the moon.
c)
inertia is greater on earth and less on the moon.
d)
mass is the same on the moon and the earth.
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