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momentum warm up

Total questions: 23

Worksheet time: 44mins

Name
Class
Date
1.

Momentum is represented with which letter?

a)

b

b)

m

c)

v

d)

p

2.

What is the unit for momentum?

a)

m/s

b)

kg

c)

N

d)

kg* m/s

e)

J

3.

The change in momentum is...

a)

Power

b)

Energy

c)

Impulse

d)

Force

4.

Momentum is always conserved.

a)

True

b)

False

5.

A bouncy ball hitting the ground.

a)

Elastic Collison

b)

Inelastic Collision

6.

A ball falls on chewed gum.

a)

Elastic Collison

b)

Inelastic Collision

7.

After an inelastic collision both objects will...

a)

move at the same speed

b)

have less mass

c)

change momentum

d)

have different speeds

8.

If an object velocity is 0 m/s which of the is true.

a)

The object has momentum

b)

The object's momentum is changing

c)

The object has NO momentum

9.

What 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

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.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
12.
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
13.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
14.
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
15.
What is the unit for velocity?
a)
m/sec
b)
kg/sec
c)
kg/m
d)
kg m/sec
16.
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
17.
What is Newton's Third Law?
a)
Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
b)
Force = mass x acceleration
c)
For every action there is an equal and opposite reaction
18.

A stationary object has a small amount of momentum.

a)

True

b)

False

19.

Calculate the momentum of a 55-kg running back moving westward at 10 m/s.

a)

550 kg·m/s, west

b)

550 kg·m/s

c)

550 m/s, west

d)

550 kg, west

20.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
21.
When two objects collide, the Pbefore is ____________ the Pafter.
a)
more than 
b)
less than 
c)
equal to
d)
unrelated to
22.

What is the total momentum before the collision?

a)

+13000 kg*m/s

b)

-3000 kg*m/s

c)

-13000 kg*m/s

d)

+3000 kg*m/s

23.

What is the total momentum AFTER the collision?

(a)  

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