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WorksheetsForce and Motion
Total questions: 69
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
2.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
3.
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
4.
An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?
a)
slowing motion in a straight line
b)
accelerating motion in a straight line
c)
constant motion in a straight line
d)
constant motion in an unpredictable direction
5.
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
6.
What Unit do we Measure Force in?
a)
Newtons
b)
Joules
c)
grams
d)
pounds
7.
How can Newton's second law be represented mathematically?
a)
F=MA
b)
M= F/A
c)
A= F/M
d)
All are correct
8.
As the acceleration of an object increases, what happens to the force of the object?
a)
force increases
b)
force decreases
c)
force remain the same
d)
mass increases
9.
The ____________ acting on an object is equal to the ____________ of that object times its __________.
a)
mass, force, acceleration
b)
acceleration, mass, force
c)
force, acceleration, mass
d)
acceleration, force, mass
10.
Will it take more force to push an empty shopping cart or a shopping cart that is full?
a)
The empty shopping cart
b)
The full shopping cart
c)
They will take the same amount of force
11.
Why would one ball travel a greater distance than the other when pushed with the same amount of force?
a)
Different sizes
b)
Different weights
c)
Different masses
d)
Different forces
12.
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
13.
Newton's third law is the law of __________________.
a)
action and reaction
b)
inertia
c)
acceleration
d)
science rocks
14.
When you hold an apple above your head, how many force pairs act on the apple?
a)
1
b)
2
c)
3
d)
4
15.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
16.
A book rests on a table. The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec2
a)
The table presses back up on the book with an equal and opposite force of 20 newtons.
b)
The table presses back up on the book with a force greater than 20 newtons.
c)
The table and the book together are accelerating downwards at 9.8 m/sec2
d)
The inertia of the book holds it up
17.
According to Newton's 3rd Law, reactions always go in the ___ direction of the action.
a)
same
b)
opposite
18.
What happens when two objects exert a force on each other?
a)
One remains still while the other one moves in the same direction.
b)
They hit each other with the same force in opposite directions.
c)
They hit each other with unequal force in opposite directions.
d)
They hit each other with the same force in the same direction
19.
A push or pull that causes a change in motion
a)
Friction
b)
Gravity
c)
Force
d)
Mass
20.
The amount of matter in an object
a)
weight
b)
force
c)
gravity
d)
mass
21.
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
22.
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
23.
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
24.
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
25.
-------->17N 17N<--------
a)
0N
b)
17N
c)
34N
d)
49N
26.
What is the acceleration of a 50 kg object pushed with a force of 500 newtons?
a)
100 m/s2
b)
25,000 m/s2
c)
10 m/s2
d)
25 m/s2
27.
Two tug-of-war opponents each pull with a force of 100 N on opposite ends of a rope. What is the tension in the rope?
a)
50 N
b)
100 N
c)
150 N
d)
200 N
28.
What is force?
a)
A force is a push or a pull upon an object resulting from the object's interaction with another object.
b)
something used in Star Wars
c)
It is the amount of space between two points.
d)
It is Superman's power
29.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
30.
the resistance of an object to a change in itʼs motion (measured by mass).
a)
inertia
b)
force
c)
friction
d)
drag force
31.
an objectʼs motion will remain constant unless acted on by a net force.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
d)
drag force
32.
acceleration is force divided by mass, or F = ma.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
d)
net force
33.
For every action, thereʼs an equal and opposite reaction.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
d)
force
34.
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
35.
The tendency of an object to stay in motion or at rest is called
a)
velocity
b)
acceleration
c)
speed
d)
inertia
36.
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
37.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
38.
A 20 kg bike accelerates at 10 m/s2. what was the net force
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
39.
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
40.
What is Newton’s Second Law of Motion?
a)
Objects at rest remain at rest and objects in motion remain in motion in a straight line unless acted upon by an unbalanced force.
b)
Force equals mass times acceleration (or f = ma).
c)
For every action there is an equal and opposite reaction.
41.
If a 10 kilogram object had a force of 50 newton's applied to it, what would its acceleration be?
a)
15 m/s^2
b)
5 m/s^2
c)
.5 m/s^2
d)
10 m/s^2
42.
A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?
a)
74.4 kg
b)
6030 kg
c)
0.0134 kg
d)
80 kg
43.
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
44.
The swimmer moves her hand down and to the left and her body goes forward to the right.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
45.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
46.
True of False?
An object's inertia is effected by its mass.
An object's inertia is effected by its mass.
a)
False
b)
True
47.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
48.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
49.
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.
50.
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
51.
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
52.
The momentum for any object is calculated by
a)
dividing mass by velocity.
b)
multiplying mass by velocity.
c)
multiplying mass by acceleration.
d)
dividing force by acceleration.
53.
A toy car of a mass of 3 kg moves along a frictionless railroad track with a velocity of 4 m/s. What is the momentum of the toy car?
a)
0.75 kg m/s
b)
0.75 N
c)
12 kg m/s
d)
12 N
54.
Which object has the greatest momentum?
a)
An 18-wheeler tractor trailer at rest.
b)
An average mass person walking.
c)
A sports car driving on the highway.
55.
Which statement best describes the law of conservation of momentum?
a)
Momentum does not change.
b)
The energy of a system is conserved.
c)
Force is proportional to acceleration.
d)
Total momentum of a system is conserved.
56.
What is the formula for momentum?
a)
p = mv
b)
F = ma
c)
E = mgh
d)
J = Ft
57.
What are the units of momentum?
a)
N
b)
kg m/s N
c)
m/s
d)
kg m/s
58.
The momentum of an object depends upon the object's ___________&_____________.
a)
size and shape
b)
mass and speed
c)
mass and veloctiy
d)
mass and energy
59.
Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?
a)
car
b)
bike
c)
they are equal
d)
cannot determine using the info provided
60.
Determine the momentum of 1000-kg car moving southward at 20 m/s.........
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s south
d)
10000 kg * m/s south
61.
A runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?
a)
14.4 kg
b)
1400 kg
c)
144 kg
d)
360 kg
62.
A 2 kg cart has a momentum of 10 kg m/s. What is its velocity?
a)
22 m/s
b)
.2 m/s
c)
5.0 m/s
d)
20 m/s
63.
An object with a mass of 2000 kg at rest has what momentum?
a)
2000 kg m/sec
b)
0 kg m/sec
c)
2000 kg
d)
2000 m/sec
64.
A 0.250 kg cart moving at 0.500 m/s has how much momentum?
a)
0.5 kg*m/s
b)
.125 kg*m/s
c)
12.5 kg*m/s
d)
10 kg*m/s
65.
What is the formula for force?
a)
F=M/A
b)
F=A/M
c)
F=M*A
d)
F=M*F
66.
If a 10 kilogram object accelerates suddenly at 15 m/s^2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
67.
If a force of 50 Newton's was applied to an object with a mass of 500 grams, what will the object's acceleration be?
a)
10 m/s^2
b)
.1 m/s^2
c)
100 m/s^2
d)
1 m/s^2
68.
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
69.
45 m/s2 is the...
a)
Mass
b)
Force
c)
Acceleration
d)
weight
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