WorksheetsAssessment Newton's Laws
Total questions: 52
Worksheet time: 1hrs 22mins
Name
Class
Date
1.
What Unit do we Measure Force in?
a)
Newtons
b)
Joules
c)
Force
d)
Don't know
2.
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
3.
With unbalanced forces, the object will move in the direction that the _______ force is being applied.
a)
larger
b)
smaller
c)
equal
4.
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
5.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
6.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
7.
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
8.
What is the name for a push or pull?
a)
A movement
b)
A force
c)
Speed
d)
Density
9.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
10.
What can a force do?
a)
all of the answers are correct
b)
start a motion
c)
stop a motion
d)
change the direction of the motion
11.
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
12.
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
13.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
14.
__________ is the sum of all forces acting on an object. It is capable of accelerating a mass.
a)
velocity
b)
gravity
c)
net force
d)
distance
15.
Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron?
a)
feathers
b)
iron
c)
same
d)
depends on their friction
16.
A force acting in the opposite direction of an object in motion
a)
Gravity
b)
Buoyant
c)
Friction
d)
Normal
17.
What is the net force in this diagram?
a)
8N right
b)
2 N right
c)
8N left
d)
2N left
18.
What is the net force of an object that is not moving?
a)
0N
b)
100N
c)
Upward force
19.
Why does a book on a table not move?
a)
No forces are acting on the book
b)
Gravity is the only force acting on the book
c)
Forces of the table pushing up and gravity pulling down are balanced
20.
The diagram above shows a box being pulled up the ramp. Which letter represents applied force?
a)
A
b)
B
c)
C
d)
D
21.
The diagram above shows a box being pulled up the ramp. letter represents the weight?
a)
A
b)
B
c)
c
d)
d
22.
The diagram above shows a box being pulled up the ramp. Which letter represents normal force?
a)
A
b)
B
c)
C
d)
D
23.
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
24.
What is the standard unit force is measured in?
a)
N
b)
lbs
c)
g
d)
m/s
25.
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
26.
Who is the scientist that discovered force= mass x acceleration?
a)
Rutherford
b)
Democritus
c)
Einstein
d)
Newton
27.
How can Newton's second law be represented mathematically?
a)
F=MA
b)
M= F/A
c)
A= F/M
d)
All are correct
28.
When you increase force what is the result of acceleration?
a)
when increase force you increase acceleration
b)
they are not related
c)
when increase force you decrease acceleration
d)
none of the above
29.
The rate of change in velocity
a)
mass
b)
force
c)
acceleration
d)
movement
30.
The amount of atoms in an object
a)
mass
b)
velocity
c)
force
d)
motion
31.
Speed and direction of an object
a)
mass
b)
force
c)
velocity
d)
acceleration
32.
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
33.
Ron has a blow dryer, ping pong ball, and tennis ball. With the hair dryer, Ron uses the air to blow the ping pong ball and tennis ball across a line.
Which object needs the least amount of force to move it?
Which object needs the least amount of force to move it?
a)
hair dryer
b)
tennis ball
c)
ping pong ball
d)
Ron
34.
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
35.
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
36.
Pushing a child on a swing is easier than pushing an adult on the same swing.
a)
1st Law
b)
2nd Law
37.
Our balloon rocket experiment launched the balloon on the straw with air blowing out of the balloon and the balloon traveling in the opposite direction. Which of Newton's laws is this?
a)
first
b)
second
c)
third
d)
fourth
38.
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
39.
If Earth's mass was cut in half, what would happen to your mass?
a)
increase because gravitational force increases
b)
decrease because gravitational force decreases
c)
decrease because gravitational force increases
d)
nothing, mass is not affected by gravitational force
40.
What is the tendency of an object to resist a change in motion?
a)
coffee
b)
motion
c)
inertia
d)
gravity
41.
What two main factors keep a planet in motion?
a)
mass and size
b)
weight and mass
c)
force and motion
d)
gravity and inertia
42.
Which object will have the greatest acceleration?
a)
1.5 kg
b)
1.0 kg
c)
11 kg
d)
21 kg
43.
How much force is needed to accelerate an object to 12 m/s/s with a mass of 2 kg?
a)
6 N
b)
11 N
c)
4 N
d)
24 N
44.
Which of these best describes why your weight (on Earth) would change on another planet?
a)
weight doesn’t change, no matter where you are
b)
different planets have different gravitational pulls
c)
In general, the smaller the planet, the greater weight
d)
dehydration effects on different planets change weight
45.
An object will not have any inertia if it is __________?
a)
Accelerating
b)
Moving in a circle
c)
In space
d)
… Nonsense! All objects have inertia
46.
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.
47.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
48.
If you travel to Mars, where gravity is 38% of Earth's gravity, what will happen to your mass and weight?
a)
Your mass and weight will both be greater than on Earth.
b)
Your mass and weight will both be less than on Earth.
c)
Your mass will be the same, but your weight will be less than on Earth.
d)
Your mass will be less than on Earth, but your weight will be the same.
49.
According to Newton's First Law, an object's velocity will not change unless _____ acts upon it.
a)
a balanced force
b)
an unbalanced force
c)
zero force
50.
A ball thrown at the ground bounces back up.
a)
Law of Inertia (1st Law)
b)
Law of Mass and Acceleration (2nd law)
c)
Law of Action Reaction (3rd Law)
51.
Once the engine stops, a rocket coasts through space.
a)
Law of Inertia
b)
Law of Mass and Acceleration
c)
Law of Action Reaction
52.
Since Force = Mass * Acceleration, how would you manipulate the equation to solve for mass?
a)
mass divided by acceleration
b)
Mass times acceleration
c)
Force divided by acceleration
d)
Equations cannot be manipulated
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