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Momentum

Total questions: 18

Worksheet time: 36mins

Name
Class
Date
1.
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
2.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
3.
A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision.  What is the velocity of the second ball after the collision? 
a)
5 m/s
b)
2.5 m/s
c)
10 m/s
d)
7.5 m/s
4.
A 9300 kg railroad car traveling at a velocity of 5 m/s strikes a second boxcar that weighs 5000 kg at rest. At what speed will the second boxcar move?
a)
18.6 m/s
b)
9.3 m/s
c)
7.5 m/s
d)
1.86 m/s
5.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
6.
The impulse is ______ the change in momentum
a)
Greater than
b)
Equal to
c)
less than
d)
always double
7.
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
8.
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
9.
Determine the momentum of 1000-kg car moving northward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s
d)
20000 kg * m/s north
10.

If an object has a velocity of 15 m/s and a momentum of 30 m/s, what is its mass?

a)

450 m/s

b)

2 m/s

c)

4,500 m/s

d)

.5 m/s

11.

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 kgm/s

b)

4 kgm/s

c)

5 kgm/s

d)

.2 kgm/s

12.

An object has a mass of 5 kg, a displacement of 5 m, and a time of 25 s, what is its momentum?

a)

320 kgm/s

b)

1 kgm/s

c)

3,200 kgm/s

d)

625 kgm/s

13.

An object has a mass of 8 kg, a displacement of 10 m, and a time of 40 s, what is its momentum?

a)

320 kgm/s

b)

.5 kgm/s

c)

3,200 kgm/s

d)

2 kgm/s

14.
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
15.

A 5 N force is applied to a 3 kg ball to slow it down from 9 m/s to 3 m/s. What is the impulse on the ball?

a)

-2.5 N⋅s

b)

-10 N⋅s

c)

-18 N⋅s

d)

-45 N⋅s

16.

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

17.
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
18.

The units for Impulse are

a)

kg

b)

NsN\cdot s

c)

N

d)

m/s

e)

kgmskg\cdot\frac{m}{s}