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CU4: Momentum Basics

Total questions: 44

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

Momentum is represented with which symbol?

a)

b

b)

m

c)

v

d)

p

2.

If an object's velocity is 0 m/s, which of the following is true?

a)

The object has momentum.

b)

The object's momentum is changing.

c)

The object has NO momentum.

3.

Which object will have more momentum: a 1000 kg truck moving 7 m/s or a 500 kg car moving 10 m/s?

a)

Truck

b)

Car

4.
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
5.

Which has more momentum: a car stopped at a red light or a bike moving at 15 mi/h?

a)
car
b)
bike
c)
they are equal
d)
cannot determine using the info provided
6.
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
7.
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
8.
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
9.

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
10.

A stationary object has a small amount of momentum.

a)

True

b)

False

11.

If a small car and large truck were both traveling at the same velocity, which would have the most momentum?

a)

the large truck

b)

the small car

c)

their momentum would be equal

12.

A 2000kg car has a momentum of zero. How is this possible?

a)

it is easily stopped

b)

it is traveling at light speed

c)

it is not moving

d)

it is traveling in space

13.
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 
a)
55 kg*m/s
b)
100 kg*m/s
c)
250 kg*m/s
d)
500 kg*m/s
14.

Which of the following has the MOST momentum? (They are all rolling at the same velocity.)

a)

rolling ping-pong ball

b)

rolling bowling ball

c)

rolling soccer ball

d)

rolling basketball

15.
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
16.
A 2 kg cart has a momentum of 16 kg m/s. What is its velocity?
a)
8 m/s
b)
32 m/s
c)
0.125 m/s
d)
18 m/s
17.
If two objects have the same mass, then the faster moving object has ____________ momentum.
a)
more 
b)
less
c)
the same
18.

Which of the following is the formula for momentum?

a)

p = mv

b)

M = mv

c)

F = ma

d)

g = mc2

19.

Which of the following is the unit for momentum?

a)

kg·m/s

b)

kg·m

c)

kg·m/s2

d)

Momentum has no unit.

20.

Why does a semi truck have more momentum than a car if they are both traveling at 60 km/h?

a)

Truck is more massive

b)

Truck is less massive

c)

Car is moving faster

d)

Car is more massive

21.
T/F:  A big truck will always have more momentum than a small car.
a)
True
b)
False
22.

As a car speeds up, what happens to its momentum?

a)

Momentum increases

b)

Momentum decreases

c)

Momentum stays the same

23.

What happens to the momentum of a car as the driver applies the brakes?

a)

Momentum increases

b)

Momentum decreases

c)

Momentum stays the same

24.

While driving, a bunch of items fall off the back of your truck. If your speed stays the same, what happens to the momentum of the truck?

a)

Momentum increases

b)

Momentum decreases

c)

Momentum stays the same

25.

What has more momentum; a rocket about to launch or a baseball thrown through the air?

a)

The rocket

b)

The baseball

c)

They have the same momentum

26.

A car is being towed at a velocity of 20 meters/second. If the car has a momentum of 17000 kg∙m/s what is its mass?

a)

340,000 kg

b)

850 kg

c)

17020 kg

d)

16980 kg

27.

A cat with a mass of 5 kilograms has a momentum of 60 kg∙m/s. What is its velocity?

a)

300 m/s

b)

12 m/s

c)

65 m/s

d)

55 m/s

28.

If an object has a mass of 20 kg and a velocity of 4 m/s, what is the momentum of the object?

a)

80 kg*m/s

b)

4 kg*m/s

c)

5 kg*m/s

d)

0.2 kg*m/s

29.

Which object has more momentum?

a)

motorcycle at 15 mi/h

b)

bike at 15 mi/h

c)

car at a stoplight

d)

runner at 10 mi/h

30.

If a 6.0 kg bowling ball is rolled with a velocity of 3.5 m/s, what is the momentum of the ball?

a)

21 kg*m/s

b)

12 kg*m/s

c)

23 kg*m/s

d)

22 kg*m/s

31.

What is the momentum of a 15 kg girl moving at a speed of 1.3 m/s?

a)

16 kg*m/s

b)

20 kg

c)

20 m/s

d)

20 kg*m/s

32.

What is the momentum of a 50 kg dolphin swimming at 10.4 m/s?

a)

520 kg*m/s

b)

60.4 kg*m/s

c)

4.8 kg*m/s

33.

What is the momentum of a 70 kg cheetah running at 30.8 m/s?

a)

100.8 kg*m/s

b)

40.8 kg*m/s

c)

2156 kg*m/s

34.

What is the momentum of a 20 kg child at 2.5 m/s?

a)

22.5 kg*m/s

b)

50 kg*m/s

c)

40 kg*m/s

35.
What is the momentum of a 25 kg bear running at 2 m/s?
a)

50 kg*m/s

b)

100 kg*m/s

c)

23 kg*m/s

36.
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 kg*m/s

b)

15 kg*m/s

c)

375 kg*m/s

d)

75 kg*m/s

37.
How much momentum does a stationary battle ship have if it has a mass of 2,575,000 kg?
a)
2,575,000 N
b)

2,575,000 kg*m/s

c)

0 kg*m/s

d)
none of the above
38.

A small boat and a large ship are both moving in the water. If they have the same momentum, which one must have a higher velocity?

a)

The large ship.

b)

The small boat

c)

Both have the same velocity.

39.

If two objects have the same momentum, but one has a higher mass, what can you say about their velocities?

a)

The object with higher mass has a lower velocity.

b)

The object with higher mass has a higher velocity.

c)

The velocities of both objects are the same.

40.

If an object has a momentum of 20 kg∙m/s and a velocity of 4 m/s, what is its mass?

a)

5 kg

b)

80 kg

c)

0.2 kg

d)

24 kg

41.

A ball with a velocity of 8 m/s has a momentum of 32 kg∙m/s. What is the ball's mass?

a)

4 kg

b)

24 kg

c)

2 kg

d)

16 kg

42.

What would have a greater momentum, a shark or a whale?

a)

It depends on their masses & velocities.

b)

The whale because it has more mass.

c)

The shark because it has more velocity.

d)

Depends on if it's salt water or fresh water.

43.

Can a bullet have the same momentum as a truck?

a)

Yes, if the bullet moves fast enough.

b)

Yes, if the truck moves fast enough.

c)

No, the truck has too much mass.

d)

No, the bullet is moving too fast.

44.

A Canadian Goose with a mass of 8 kg runs at you with a speed of 10 m/s. What is the momentum of the goose?

a)

80 kg*m/s

b)

0.8 kg* m/s

c)

1.25 kg* m/s

d)

2 kg*m/s