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Major Test: Momentum, Impulse, and Collisions

Total questions: 100

Worksheet time: 3hrs 59mins

Name
Class
Date
1.
A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?
a)
25 m/s
b)
375 m/s
c)
25 kg m/s
d)
375 kg m/s
2.
A runner has a momentum of 670 kg m/s and is travelling at a velocity of 9 m/s. What is his mass?
a)
6030 kg
b)
0.0134 kg
c)
74.4 kg
d)
80 kg
3.

The units for Impulse are

a)

N/s

b)

N·s

c)

N

d)

m/s

4.
Cart A is pulled with a 2 Newton force for 2 seconds, and Cart B is pulled with a 1 Newton force for 3 seconds.  Which cart experiences the greatest impulse?
a)
Cart B
b)
Cart A
c)
they are the same
5.

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.

Calculate the impulse on the ball.

a)

1 N·s

b)

6 N·s

c)

66 N·s

d)

None of these

6.
The purpose of crumble zones on a car is to
a)
decrease time of impact.
b)
increase force of impact.
c)
increase the time of impact.
d)
decrease the impulse during impact.
7.
The difference between a car hitting a wall vs. a car hitting a hay stack is
a)
the Impulse on the car hitting the wall is greater
b)
the change in momentum of the car hitting the wall is greater
c)
the force on the car hitting the hay stack is greater
d)
the collision time of the car hitting the hay stack is greater
8.
The impulse-momentum theorem states that
a)
the impulse on an object is equal to the change in momentum it causes 
b)
the force on a moving object is equal to the magnitude of the impulse.
c)
the impulse on an object is greater than the change in momentum it causes 
d)
the impulse on an object is less than the change in momentum it causes
9.
can a bullet have the same momentum a truck?
a)
yes
b)
no
10.

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

11.

Determine the momentum of 1,000-kg car moving northward at 20 m/s.

a)

20,000 N

b)

20,000 Joules

c)

20,000 Kg * m/s

d)

20,000 kg * m/s north

12.

When the speed of an object is doubled, its momentum...

a)

remains unchanged in accord with the conservation of momentum.

b)

doubles.

c)

quadruples.

d)

decreases.

13.
If two objects have the same mass, then the faster moving object has ____________ momentum.
a)
more 
b)
less
c)
the same
14.
The total momentum before a collision is _________ the total momentum after a collision.
a)
equal to 
b)
less than 
c)
more than
d)
It depends on the type of collision
15.

Collisions where objects BOUNCE apart.

a)

inelastic collisions

b)

elastic collisions

c)

explosions

d)

none of these

16.

Two Pool Balls collide and then go separate directions.

a)

inelastic collision

b)

elastic collision

c)

explosion

d)

none of these

17.

Collision where objects collide, and stick together.

a)

inelastic collision

b)

elastic collision

c)

explosion

d)

none of these

18.

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 these

19.

Action: Your foot applies a downward force onto the floor.


Reactiion?

a)

Your foot pushes through the floor.

b)

Your foot bounces off of the floor.

c)

The floor applies an equal and opposite force upward on your foot.

d)

The floor collapses.

20.

An insect applies 1.5 N of force to a windshield of a moving car. How much force does the windshield apply to the insect?

a)

15,000 N

b)

1.5 N

c)

0.5 N

d)

Not enough information

21.

What is the TOTAL MOMENTUM for the system BEFORE COLLISION?

a)

14 Kg x m/s

b)

10 Kg x m/s

c)

24 Kg x m/s

d)

-24 Kg x m/s

22.

What will the TOTAL MOMENTUM be AFTER COLLISION?

a)

12 Kg x m/s

b)

10 Kg x m/s

c)

24 Kg x m/s

d)

-24 Kg x m/s

23.

If the cars collided INELASTICALLY, how would they move afterward (if at all)?

a)

They would BOUNCE OFF and move LEFT

b)

They would BOUNCE OFF and move RIGHT

c)

They would STICK TOGETHER and move LEFT

d)

They would STICK TOGETHER and move RIGHT

24.

During an INELASTIC COLLISION what would happen to the velocity of the cars since they are now stuck together?

a)

Velocity INCREASES

b)

Velocity DECREASES

c)

Velocity remains the SAME

25.

Which cart applies a GREATER FORCE during the collision (according to Newton's 3rd Law)?

a)

Red Cart

b)

Blue Cart

c)

Forces are EQUAL for BOTH carts

26.

When comparing the momentum of two moving objects, which of the following is correct?

a)

the object with the higher velocity will have less momentum if the masses are equal

b)

the more massive object will have less momentum if its velocity is greater

c)

the less massive object will have less momentum if the velocities are the same

d)

the more massive object will have less momentum if the velocities are the same

27.

A roller coaster climbs up a hill at 4 m/s and then zips down the hill at 30 m/s. The momentum of the roller coaster

a)

is greater up the hill than down the hill

b)

is greater down the hill than up the hill

c)

remains the same throughout the ride

d)

is zero throughout the ride

28.

A child with a mass of 23 kg rides a bike with a mass of 5.5 kg at a velocity of 4.5 m/s to the south. Compare the momentum of the child with the momentum of the bike.

a)

Both the child and the bike have the same momentum

b)

the bike has a greater momentum than the child

c)

the child has a greater momentum than the bike

d)

neither the child nor the bike has momentum

29.

The impulse experienced by a body is equivalent to the body's change in

a)

velocity

b)

kinetic energy

c)

momentum

d)

force

30.
what is the objects momentum for 8 m/s
a)
6
b)
8
c)
10
d)
12
31.
what is the object's velocity for momentum of 6 kg.m/s?
a)
2
b)
4
c)
6
d)
8
32.

How fast are you going?

a)

Depends on the frame of reference

b)

0

c)

10

d)

What?

e)

How fast do you want me to me going?

33.

the tendency of an object to resist a change in its motion

a)

acceleration

b)

inertia

c)

mass

d)

frame of reference

34.
Objects with greater _________ also have greater inertia.
a)
speed
b)
mass
c)
temperature
d)
friction
35.
Because of inertia, a resting object will remain at ________.
a)
rest
b)
a constant speed
c)
school
d)
inertia 
36.
Because of inertia, a moving object will keep ________.
a)
at rest
b)
moving
c)
in one spot
d)
inertia 
37.

Inertia is a force

a)

True

b)

False

38.

Inertia is Newton's _______ Law of Motion.

a)

First

b)

Second

c)

Third

39.

Inertia tells us that we need ____________ to get an object moving or to make it stop.

a)

a force

b)

gravity

c)

friction

d)

strength

40.
What is acceleration?
a)
Change in speed
b)
Change in direction
c)
Change in velocity
d)
Change in mass
41.

How many times does the object change the direction is it going in, based on this graph?

a)

0

b)

1

c)

2

d)

3

42.

How many times is this object at rest?

a)

0

b)

1

c)

2

d)

3

43.

Between which time intervals does the object speed up/increase velocity?(velocity moves away from 0 m/s point)

a)

0-10 sec and 40-55 sec

b)

15-30 sec and 40-55 sec

c)

0-10 sec and 30-40 sec

d)

15-30 sec and 30-40 sec

44.

How many times does this object have no acceleration?(no acceleration means velocity doesn't change so acceleration = 0 m/s2)

a)

0

b)

1

c)

2

d)

3

45.

What is the rate of acceleration during the 3rd line segment? (slope between 15 - 40 sec)

a)

0 m/s2

b)

2.7 m/s2

c)

6 m/s2

d)

- 4 m/s2

46.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
47.
Which two forces are equal?
a)
The Force of Gravity and the Normal Force
b)
The applied force and the Force of friction
c)
None
d)
The Force of Gravity and the  Motion Force
48.
A force that slows or stops motion when objects rub together.
a)
Friction
b)
Push
c)
Pull
d)
Magnetism
49.
Is this a balanced or unbalance force?
a)
Balanced
b)
Unbalanced
c)
Neither one
d)
Both
50.

Calculate the net force.

a)

0 N

b)

5 N

c)

25 N

d)

15 N

51.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
52.
Name the missing force...
a)
applied force
b)
weight force
c)
tension force
d)
drag
53.
Name the missing force...
a)
tension force
b)
gravitational force
c)
normal force
d)
applied force
54.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
55.
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
56.
The force that pulls things toward earth.
a)
Speed
b)
Gravity
57.
Force depends on
a)
Force
b)
mass
c)
acceleration
d)
mass and acceleration 
58.
The SI Unit of force is
a)
Pascal
b)
Meter/second
c)
Newton
d)
kg
59.
Is it BALANCED? 
a)
Yes
b)
No
60.
The tendency of an object to stay in motion or at rest is called 
a)
velocity
b)
acceleration
c)
speed
d)
inertia
61.
Is this a balanced or unbalance force?
a)
Balanced
b)
Unbalanced
c)
Neither one
d)
Both
62.
Calculate the net force of the object in the image shown.
a)
20N
b)
35N
c)
5N
d)
25N
63.
Which direction will the object move?
a)
Up
b)
Down
c)
Right
d)
Left
64.
What is the net force of this object?
a)
0N
b)
50N
c)
25N
d)
5N
65.

Calculate the net force.

a)

0 N

b)

5 N

c)

25 N

d)

15 N

66.

How many times does the object change the direction is it going in, based on this graph?

a)

0

b)

1

c)

2

d)

3

67.

How many times is this object at rest?

a)

0

b)

1

c)

2

d)

3

68.

Between which time intervals does the object speed up/increase velocity?(velocity moves away from 0 m/s point)

a)

0-10 sec and 40-55 sec

b)

15-30 sec and 40-55 sec

c)

0-10 sec and 30-40 sec

d)

15-30 sec and 30-40 sec

69.

Between which time intervals does the object slow down/decrease velocity?(velocity move towards 0 m/s point)

a)

0-10 sec and 40-55 sec

b)

15-30 sec and 40-55 sec

c)

0-10 sec and 30-40 sec

d)

15-30 sec and 30-40 sec

70.

How many times does this object have no acceleration?(no acceleration means velocity doesn't change so acceleration = 0 m/s2)

a)

0

b)

1

c)

2

d)

3

71.

What is the rate of acceleration during the first line segment? (slope between 0 - 10 sec)

a)

0 m/s2

b)

2.7 m/s2

c)

6 m/s2

d)

- 4 m/s2

72.

What is the rate of acceleration during the 2nd line segment? (slope between 10 - 15 sec)

a)

0 m/s2

b)

2.7 m/s2

c)

6 m/s2

d)

- 4 m/s2

73.

What is the rate of acceleration during the 3rd line segment? (slope between 15 - 40 sec)

a)

0 m/s2

b)

2.7 m/s2

c)

6 m/s2

d)

- 4 m/s2

74.

What is the slope of the 3rd line segment?

a)

0 m/s2

b)

2 m/s2

c)

4 m/s2

d)

- 3 m/s2

75.
a)

An object moves at a constant velocity and then stops

b)

An object speeds up and then moves with constant velocity

c)

An object slows down and then stops

d)

An object speeds up and then stops

76.
a)

An object moves with constant velocity and the speeds up

b)

An object slows down, stops, and then moves at a constant velocity

c)

An object slows down, stops turns around, and then speeds up

d)

An object slows down, stops, and then speeds up without turning around

77.
a)

An object moves with constant velocity and the speeds up

b)

An object slows down, stops, and then moves at a constant velocity

c)

An object slows down, stops turns around, and then speeds up

d)

An object slows down, stops, and then speeds up without turning around

78.
a)

An object is at rest initially and then slows down

b)

An object is at rest initially and then speeds up

c)

An object moves at a constant velocity and then slows down

d)

An object moves at a constant velocity and then speeds up

79.

Describe the velocity in this graph.

a)

constant and positive

b)

constant and negative

c)

decreasing

d)

increasing

80.

The graph shows Ashley riding her bike to Maria's house.

What was occurring from point B to point C?

a)

She was increasing her speed.

b)

She stopped for 4 minutes

c)

She was decreasing in speed

d)

She was moving forward at a steady 800 m/s

81.
The graph respresents
a)
No motion
b)
Constant Velocity
c)
Acceleration
d)
Deceleration
82.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
83.

During which time interval is this object moving forward?

a)

0 s to 4 s

b)

1 s to 6 s

c)

1 s to 4 s

d)

4 s to 6 s

84.

During which time interval does this object has positive acceleration?

a)

0 s to 4 s

b)

1 s to 4 s

c)

4 s to 6 s

d)

0 s to 6 s

85.

What acceleration does this object have from 1 s to 4 s?

a)

3 m/s2

b)

15 m/s

c)

5 m/s2

d)

4 m/s2

86.

The president’s airplane, Air Force One, flies at 250 m/s to the east (compared to the ground). The president visits the pilots in the cockpit. Then he walks to the back of the plane at 1 m/s. What is his speed relative to the ground?

a)

249 m/s

b)

251 m/s

c)

253 m/s

d)

248 m/s

87.
In which of the following graphs (click the image) are both runners moving at the same speed (note that graph c is the bottom right graph, and graph d is the bottom left graph)? 
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
88.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
89.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
90.
What is happening in this graph from point B to C?
a)
The object is going down a hill.
b)
The object is returning to its starting location.
c)
The object is slowing down.
d)
The object is staying still.
91.
What is happening in this graph from point A to B?
a)
The object is accelerating.
b)
The object is not moving.
c)
The object is decelerating.
d)
The object is moving at a constant speed.
92.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
93.
What is the speed of an object that travels 20 meters in 4 seconds?
a)
80 m/s
b)
0.2 m/s
c)
5 m/s
d)
24 m/s
94.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
95.

which of the following is a vector?

a)

velocity

b)

discance

c)

position

d)

speed

96.

How do scalars and vectors differ?

a)

scalers have units

b)

scalers have direction

c)

vectors have units

d)

vectors have direction

97.
Distance and direction of an object's change in position from a starting point
a)
displacement
b)
distance
c)
motion
d)
reference point
98.
If a boomerang is thrown 20 m in a straight line and returns exactly to the spot it was thrown what is its displacement?
a)
20m
b)
40m
c)
0m
d)
-20m
99.
A scalar is a magnitude _____.
a)
With direction.
b)
Without direction.
100.
Which of these is not a vector quantity? 
a)
displacement 
b)
time
c)
velocity 
d)
acceleration

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