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Newton's Laws of Motion/Law of Conservation of Momentum

Total questions: 54

Worksheet time: 2hrs 48mins

Name
Class
Date
1.
Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...
a)
Skater 1 experiences a greater change in momentum
b)
Skater 2 experiences a greater change in momentum
c)
Skater 1 has a greater velocity than Skater 2
d)
Skater 1 experiences a greater force
2.
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
3.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
4.
Which object listed below has the greatest momentum?
a)
A 0.05 kg object rolling at 0.2 m/s.
b)
A 0.15 kg object rolling at 2 m/s.
c)
A 0.15 kg object rolling at 1 m/s
d)
A 0.4 kg object rolling at 2 m/s.
5.

The Law of Conservation of Momentum states:

a)

The total momentum before a collision is equal to the total momentum after a collision.

b)

The total momentum before a collision is greater than the total momentum after a collision.

c)

The total momentum before a collision is less than the total momentum after a collision.

d)

The total momentum before a collision is not related to the total momentum after a collision.

6.

According to Newton's Laws, for every action there is an ....

a)

equal and opposite reaction.

b)

equal and parallel reaction.

c)

unequal and opposite reaction.

d)

unequal and unrelated reaction.

7.
If net force acting on object is 0, then the force is considered to be..
a)
Balanced
b)
Unbalanced
c)
Equal in Direction
d)
Distance/Time
8.

Pick all of the scenarios below that are collisions.

a)

A catcher catches a baseball.

b)

A pitcher throws a baseball.

c)

Two cars smash into each other.

d)

Two students on roller skates push away from each other.

e)

A bug smashes into a windshield.

9.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
10.
The definition of momentum is
a)
Mass in Motion
b)
The size of an object
c)
The velocity of an object
d)
A comparison between two objects
11.
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
12.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than 
b)
less than 
c)
equal to
d)
unrelated to
13.
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 
14.
A person is pushed forward into their seat belt when a car stops.  Which law is this?
a)
1st
b)
 2nd
c)
2 and 3
d)
3rd 
15.
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
16.

According to Newton's first law, an object that is moving will keep moving until...

a)

It stops

b)

Another force acts on it

17.

Pretend that you are in a car and not wearing a seatbelt. What might happen to you if the driver slammed on the brakes?

a)

You would move sideways

b)

You would move towards the front windshield

c)

You would stay in your seat

18.
A _______ is a push or pull.
a)
Newton
b)
Acceleration
c)
Momentum
d)
Force
19.

How is this an example of Newton’s Third law?

a)

Only the ball is using the head

b)

They are both exerting an equal force on each other

c)

Only the head is pushing the ball

20.

A baseball bat hits a baseball with a force of 100 Newtons. What is the force and its direction exerted by the ball on the bat?

a)

100 Newtons, same direction

b)

100 Newtons, opposite direction

c)

200 Newtons, opposite direction

d)

200 Newtons, same direction

21.
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
22.
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.
23.
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
24.
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
25.
 267.5 N unbalanced force applied to push a stuffed chair across the room, causing an acceleration of 4.2 m/s2. What is the mass of the chair?
a)
26.75 kg
b)
63.69 kg 
c)
263.3 kg 
d)
1123.5 kg
26.
To test Newton’s law of gravity, Ben and Jerry climbed the football stadium at school and dropped an egg from the very top of the bleachers. Their egg dropped data can be seen in the table According to this data, What conclusion can the boys make regarding Newton’s law of gravity?
a)
a)  No conclusion can be drawn from the data
b)
a)  The acceleration due to gravity is not constant
c)
a)  The acceleration due to gravity of 9.8 m/s2 is refuted
d)
a)  The acceleration due to gravity of 9.8 m/s2 is supported
27.
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
28.
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
29.
a)
1st
b)
2nd
c)
3rd
30.
a)
1st
b)
2nd
c)
3rd
31.
F = MxA
a)
1st
b)
2nd
c)
3rd
32.
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
33.
If net force acting on object is 0, then the force is considered to be..
a)
Balanced
b)
Unbalanced
c)
Equal in Direction
d)
Distance/Time
34.

Which of the following is an example of balancing forces?

a)

A Book resting on the table.

b)

A pencil is knocked off the desk.

35.

What is Newton's 3rd Law?

a)

For every action there is an equal and opposite reaction.

b)

Acceleration depends on two variables, the mass of the object and the amount of force.

36.

What explains a quantity that has BOTH speed and direction?

a)

Inertia

b)

Force

c)

Speed

d)

Velocity

37.

Looking at the image. Decide if this is balanced or unbalanced.

a)

Unbalanced

b)

Balanced

38.

Looking at the image. Decide if this is balanced or unbalanced.

a)

Unbalanced

b)

Balanced

39.

Friction at rest is...

a)

sliding

b)

rolling

c)

fluid

d)

static

40.

Which kind of friction do you use when leaving marks on paper with a lead pencil?

a)

static

b)

sliding

c)

rolling

d)

fluid

41.

Which factors affect the amount of friction an object encounters?

a)

mass and distance

b)

distance and roughness

c)

mass and roughness

42.

The amount of matter in an object is...

a)

gravity

b)

weight

c)

mass

43.

Your mass would be the same on the moon as it is on earth. Only your weight would change.

a)

False

b)

True

44.
How much force is needed to accelerate a 25kg bowling ball at 2m/s2. 
a)
50N
b)
5N
c)
12.5N
d)
100N
45.
Newton's law of motion describes the relationship of force, mass, and acceleration. Write the equation.
a)
M=F/A
b)
F=MA
c)
A= F/M
d)
All of the above
46.
A 50 kg skater pushed by a friend accelerates 5 m/sec2.  How much force did the friend apply?
a)
45 N
b)
15 N 
c)
10 N
d)
250 N
47.
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
48.
A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec2.  What is the mass of the object?
a)
100kg 
b)
1,250kg
c)
50kg
d)
5kg
49.
Which direction will the object move?
a)
Up
b)
Down
c)
Right
d)
Left
50.
If a force causes an object to move, it's considered a(n) __________________ force.
a)
Balanced
b)
Unbalanced
c)
Massive
d)
Strong
51.

What net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 kg? (a)   Newtons

52.

The image shows a block that is being pulled along the floor. According to the image, what is the acceleration of the block? (a)   m/s2

53.

What is the mass of a falling rock (acceleration due to gravity is 9.8 m/s2) if it produces a force of 147 N? (a)   kg

54.

An object with a mass of 10 kg is accelerated upward at 2 m/s2. What force is required? (a)   Newtons

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