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Impulse and Momentum

Total questions: 25

Worksheet time: 25mins

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.

What happens when a system winds up being isolated?

a)

The total momentum stays the same during collisions, etc.

b)

The total momentum drops down to zero.

c)

All objects will leave the system.

d)

All energy turns to kinetic energy.

3.
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
4.
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
5.

After collision, the two objects move off with different velocity. What type of collision is this?

a)

Inelastic

b)

Elastic

6.
The impulse is ______ the change in momentum
a)
greater than
b)
equal to
c)
less than
d)
always double
7.
The momentum of an object depends upon the object's ___________&_____________.  
a)
size and shape
b)
mass and speed
c)
mass and velocity
d)
mass and energy
8.
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
9.
When the speed of an object is doubled, its momentum __________.
a)
remains unchanged 
b)
doubles
c)
quadruples
d)
decreases
10.
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
11.
If two objects have the same mass, then the faster moving object has ____________ momentum.
a)
more 
b)
less
c)
the same
12.
The equation to calculate momentum is __________.
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
13.
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
14.
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.
15.

If an object with a mass of 10 Kg is traveling at 30 m/s, what is it's momentum?

a)

3 kg *m/s

b)

3 N

c)

300 kg *m/s

d)

300 N

16.

If two shopping carts are traveling at the same speed, but one is full and one is empty, which will have more momentum?

a)

The empty one

b)

The full one

c)

Neither

17.

A car has a mass of 1200 Kg and travels at 20 m/s. What is it's momentum?

a)

60 kg * m/s

b)

60 N

c)

24000 N

d)

24000 kg* m/s

18.

A ball traveling at 2 m/s collides with another ball at rest and bounces off of it. What type of collision is it?

a)

Elastic

b)

Inelastic

c)

Normal

19.

This gif is an example of...

a)

An Inelastic collision

b)

An Elastic collsion

20.

An object traveling at 5 m/s collides with another object. Both stick together and continue to travel. What type of collision is this?

a)

Elastic collision

b)

Inelastic collision

c)

Normal collision

21.

In a closed system, momentum is never...

a)

transferred or destroyed

b)

created or destroyed

c)

transferred

d)

created

22.

The conservation of momentum means...

a)

The momentum before an event disappears after the event

b)

The momentum before and after an event are equal

c)

The momentum before an event increases after the event

d)

The momentum before and after an event changes

23.
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
24.
Softer landings tend to
a)
increase impact force
b)
increase force
c)
increase collision time
d)
increase change in momentum
25.
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

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