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Momentum and Energy Test Review

Total questions: 70

Worksheet time: 4hrs 30mins

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 traveling 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)
Ns
c)
N
d)
m/s
4.
The purpose of air bags 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.
5.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
6.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
7.
The unit of measurement for energy is-
a)
joules
b)
m/s
c)
kg
d)
newtons
8.
In this type of collision, objects tend to "stick" together.
a)
elastic
b)
inelastic 
c)
They "stick" together in both types of collisions
9.

_______ is stored energy.

a)

Potential Energy

b)

Kinetic Energy

c)

Newton’s 2nd Law

d)

Newton’s 3rd Law.

10.

___________ is energy in motion

a)

Potential Energy

b)

Kinetic Energy

c)

Newton’s 2nd Law

d)

Newton’s 3rd Law.

11.

Energy can never be created nor destroyed only changed from one form to another but the total amount of energy remains the same.

a)

Law of conservation of energy

b)

Law of conservation of momentum

c)

Energy creation theory

d)

Energy constant formula

12.

Momentum can never be created nor destroyed only transferred from one object to another but the total amount of momentum in the system remains the same.

a)

Law of conservation of energy

b)

Law of conservation of momentum

c)

Energy creation theory

d)

Energy constant formula

13.
If a moving ship is loaded with iron ore so that its mass is doubled, the amount of its momentum would   __________ .
a)
 stay the same
b)
also double
c)
reduce by half
d)
 increase by an unknown amount
14.
The unit for momentum is:
a)
Newton’s 
b)
Joules
c)
Kg m/s
d)
m/s 
15.
A softball is pitched very fast while another softball of equal mass is pitched at half the velocity. Therefore it can be said that the fast moving softball will be harder to stop because it has _________________ momentum. 
a)
more
b)
less
c)
equal
16.
A heavy truck slowly moves up a hill at 3 m/s and then goes down the other side of the hill at 50 m/s. The momentum of the truck is ___________________________ down the hill than up the hill.
a)
greater
b)
smaller
17.

The momentum of an object depends upon the object's ___________&_____________.

a)

size and shape

b)

mass and inertia

c)

mass and veloctiy

d)

mass and energy

18.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
19.
The ability to do work or cause change is called ________?
a)
force
b)
work 
c)
energy
d)
power
20.
1/2 x Mass x Velocity2 =
a)
potential energy
b)
kinetic energy
c)
elastic potential energy
d)
gravitational potential energy
21.
Stored energy that results from the position or shape of an object is called _____________.
a)
potential energy
b)
kinetic energy
c)
gravitational potential energy
d)
elastic potential energy
22.

The product of the average net force on an object and the time interval over which the force acts.

a)

Impulse

b)

Momentum

c)

Angular momentum

d)

Impulse-momentum theorem

23.

The product of an object's mass and the object's velocity; measured in kg m/s

a)

Impulse

b)

Momentum

c)

Kinetic energy

d)

Gravitational potential energy

24.

States that the momentum of any closed, isolated system does not change.

a)

Law of conservation of angular momentum

b)

Law of conservation of energy

c)

Law of conservation of momentum

d)

Lenz's Law

25.

The stored energy in a system resulting from the gravitational force between objects.

a)

Kinetic energy

b)

Thermal energy

c)

Elastic potential energy

d)

Gravitational potential energy

26.

Stored energy due to an object's change in shape.

a)

Kinetic energy

b)

Thermal energy

c)

Elastic potential energy

d)

Gravitational potential energy

27.

A type of collision in which the kinetic energy before and after the collision remains the same.

a)

Elastic collision

b)

Inelastic collision

c)

Conserved collision

d)

Kinetic collision

28.

A type of collision in which the kinetic energy after the collision is less than the kinetic energy before the collision.

a)

Elastic collision

b)

Inelastic collision

c)

Conserved collision

d)

Kinetic collision

29.

As a student walks downhill at constant speed,

his gravitational potential energy

a)

increases and his kinetic energy increases

b)

increases and his kinetic energy remains the

same

c)

decreases and his kinetic energy increases

d)

decreases and his kinetic energy remains the

same

30.

As a student walks downhill at constant speed,

his gravitational potential energy

a)

increases and his kinetic energy increases

b)

increases and his kinetic energy remains the

same

c)

decreases and his kinetic energy increases

d)

decreases and his kinetic energy remains the

same

31.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
32.
A 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. If the two bobs stick together, what will the velocity of the two blobs move at?
a)
3.57 m/s
b)
3.2 m/s
c)
10.0  m/s
d)
9.0  m/s
33.

During a collision. an object experiences an impulse. How can this impulse be calculated?

a)

Multiplying force by time

b)

Multiplying mass by velocity

c)

Dividing velocity by time

d)

Multiplying mass by acceleration

34.
Which has a greater impact on KE?
a)
mass
b)
velocity
35.
At which point(s) on the roller coaster is the gravitational potential energy at its maximum?
a)
A
b)
B
c)
C
d)
D
36.
At which point(s) on the roller coaster is the kinetic energy at its maximum?
a)
A
b)
B
c)
C
d)
D
37.

Which has more momentum, a large truck moving at 30 miles per hour or a small truck moving at 30 miles per hour?

a)

the large truck

b)

the small truck

c)

Both have the same momentum

38.

If the momentum of an object changes and its mass remains constant

a)

its velocity is changing

b)

it is accelerating or decelerating

c)

there is a force acting on it

d)

All of the above

39.

The momentum change of an object is equal to the

a)

force acting on it

b)

velocity change of the object

c)

impulse acting on it.

d)

object's mass times the force acting on it.

40.
T/F:  A big truck will always have more momentum than a small car.
a)
True
b)
False
41.

When a roller coaster is at the top of a hill it has

a)

high potential energy

b)

high kinetic energy

c)

low potential energy

d)

equal amounts of kinetic and potential energy

42.

When a roller coaster is at the bottom of a hill it has

a)

high potential energy

b)

high kinetic energy

c)

low kinetic energy

d)

equal amounts of kinetic and potential energy

43.

If all of these animals were running at the same speed, which one would have the highest momentum?

a)

b)

c)

d)

44.
Click to look at the picture.
The picture is demonstrating an example of ______ . 
a)
gravity
b)
speed
c)
kinetic energy
d)
potential energy
45.
Click to look at the picture. 
The picture is an example of _____ .
a)
gravity
b)
potential energy
c)
kinetic energy
d)
friction
46.

Which of the following is NOT an example of kinetic energy?

a)

an arrow flying through the air

b)

a book on a shelf

c)

kicking a soccer ball

d)

chewing gum

47.

Which of the following is NOT an example of potential energy?

a)

water at the top of a waterfall

b)

an arrow pulled back on a bow

c)

a fully-charged battery

d)

shooting a ball in the hoop

48.

Calculate the kinetic energy of a moving 5 kg object travelling at a velocity of 2 m/s.

a)

2 J

b)

5 J

c)

10 J

d)

20 J

49.
Two football players with mass 75 kg and 100 kg run directly toward each other with speeds of 6 m/s and 8 m/s respectively. If they grab each other as they collide, the combined speed of the two players just after the collision would be:
a)
2 m/s 
b)
3.4 m/s 
c)
4.6 m/s 
d)
7.1 m/s
50.
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
51.
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
52.

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 speed than Skater 2

d)

Skater 1 experiences a greater force

53.

Which of the following has the MOST momentum?

a)

rolling ping-pong ball

b)

rolling bowling ball

c)

rolling soccer ball

d)

rolling basketball

54.

If an object has a momentum of 40 kgm/s and a mass of 60 kg, what is it's velocity?

a)

2400 m/s

b)

1.5 m/s

c)

240 m/s

d)

.67 m/s

55.
The ability to do work is
a)
power
b)
energy
c)
thermal
d)
kinetic
56.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than 
b)
less than 
c)
equal to
d)
unrelated to
57.
Kinetic energy is the...
a)
Energy stored in an object equal to m*g*h
b)
Energy due to the motion of the object, 1/2*m*v2
58.

Potential energy depends on ____________ & ______________.

a)

mass, speed

b)

mass, position

c)

speed, position

d)

mass, weight

59.

Kinetic energy depends on _____________ & _____________.

a)

mass, speed

b)

mass, position

c)

mass, weight

d)

speed, distance

60.
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
61.
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
62.
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)
33.3 N*s 
d)
None of these
63.
Which of the following has the least amount of momentum?
a)
An ant walking along the ground
b)
An ant at rest
c)
An elephant walking
d)
An elephant running
64.
A 0.250 kg cart moving at 0.400 m/s has how much momentum?
a)
0.1 kg-m/s
b)
1 kg-m/s
c)
10 kg-m/s
d)
100 kg-m/s
65.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
66.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
67.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
68.
At which point is kinetic energy greatest?
a)
W
b)
X
c)
Y
d)
Z
69.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
70.

The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?

a)

mechanical to heat

b)

sound to mechanical

c)

potential to kinetic

d)

kinetic to potential

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