NEW
Font size
S
M
L
XL
WorksheetsMomentum
Total questions: 45
Worksheet time: 1hrs 23mins
Name
Class
Date
1.
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
2.
When is momentum conserved in a collision?
a)
When the collision is inelastic.
b)
When the collision is elastic.
c)
When the collision is inelastic OR elastic but never an explosion.
d)
All collisions.
3.
T/F: Impulse is a force.
a)
True
b)
False
4.
T/F: During a collision, one object will gain momentum and the second object will lose the same amount of momentum gained by the first object.
a)
True
b)
False
5.
A club hit a golf ball with 1500 N of force and is contact with it for 0.5 seconds. Find the impulse on the ball.
a)
750 N s
b)
3000 N s
c)
1500 N s
d)
300 N s
6.
When a bat collides with a baseball, the momentum of the bat
a)
transfers to the momentum of the ball
b)
transfers from the momentum of the ball
c)
does not transfer from the bat to the ball
d)
does not transfer from the ball to the bat
7.
True or False: Weight is a Force
a)
true
b)
False
8.
A 3 kg steel block is at rest on a frictionless horizontal surface. A 1 kg lump of clay is propelled horizontally at 6 m/s toward the block as shown in the diagram. Upon collision, the clay and steel block stick together and move to the right with a speed of
a)
1.5 m/s
b)
2.0 m/s
c)
3.0 m/s
d)
6.0 m/s
9.
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
10.
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
11.
A 2 kg cart has a momentum of 10 kg m/s. What is its velocity?
a)
22 m/s
b)
.2 m/s
c)
5.0 m/s
d)
20 m/s
12.
A 0.250 kg cart moving at 0.500 m/s has how much momentum?
a)
0.125 kg
b)
.125 kg*m/s
c)
12.5 kg*m/s
d)
10 kg*m/s
13.
A .030 kg bullet is fired from a gun with a speed of 350 m/s. If the gun has a mass of 0.9 kg, What is the recoil speed of the gun?
a)
-11.7 m/s
b)
-9.0 m/s
c)
11.7m/s
d)
9 m/s
14.
A 9 kg blob moving at 5 m/s collides and sticks to a stationary 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)
3.21 m/s
c)
10.0 m/s
d)
-3.21 m/s
15.
When the velocity of an object is doubled, its momentum
a)
remains unchanged in accord with the conservation of momentum.
b)
doubles
c)
quadruples
d)
decreases
16.
In any collision (crash) the ______ is ALWAYS constant
a)
total momentum
b)
total speed
c)
total Velocity
d)
Energy
17.
How can a tennis ball and a bowling ball have the same momentum?
a)
have the same velocity
b)
have different velocities
c)
one is moving backwards
d)
they can't
18.
When two objects collide, the pbefore is ____________ the pafter.
a)
more than
b)
less than
c)
equal to
d)
unrelated to
19.
The recoil speed of a rifle is much less than the exit velocity of a bullet because...
a)
the rifle experiences a smaller force
b)
the rifle experiences a smaller change in momentum
c)
the rifle has a much greater mass
d)
the rifle does not obey the laws of physics
20.
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 velocity than Skater 2
d)
Skater 1 experiences a greater force
21.
The purpose of crumple zones 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.
22.
In order to catch a ball, a baseball player puts the glove forward before impact with the ball, then lets it ride backward in the direction of the ball's motion. Doing this reduces the force of impact on the player's hand because:
a)
The time of impact is decreased.
b)
The time of impact is increased.
c)
Velocity is less.
d)
None of these.
23.
When a large football player and a small football player run into each other, who exerts more force?
a)
The heavy one
b)
The light one
c)
They are equal
d)
there is no such thing as force
24.
A bus hits a bug and the bug splatters on the windshield, which force is greater?
a)
The Bus
b)
The Bug
c)
They're the same
d)
Gravity acting on the bus
25.
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.
26.
After a red cart and a blue cart collide, the red cart gains 5 kg m/s. What happens to the blue cart's momentum?
a)
It gains 5 kg m/s
b)
It gains 0 kg m/s
c)
It loses 5 kg m/s
d)
It loses 10 kg m/s
27.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
28.
What is the unit for momentum?
a)
m/s
b)
kg/s
c)
kg/m
d)
kg m/s
29.
A car with 10,000 kg m/s of momentum does an emergency stop which takes 5s. What was the force acting on the car?
a)
50,000N
b)
500N
c)
50,000 kg m/s
d)
2000N
30.
The formula for Impulse is
a)
mass multiplied by time
b)
mass multiplied by time
c)
Force multiplied bymass
d)
Force multiplied by time
31.
Paul is riding a motorbike while wearing a helmet with a face shield. A beetle hits Paul's face shield while Paul is moving at 30 mph. Which undergoes the greater impulse?
a)
Paul
b)
Beetle
c)
both are the same
32.
Paul is riding a motorbike while wearing a helmet with a face shield. A beetle hits Paul's face shield while Paul is moving at 30 mph. Which undergoes the greater change in momentum?
a)
Paul
b)
Beetle
c)
both are the same
33.
Paul is riding a motorbike while wearing a helmet with a face shield. A beetle hits Paul's face shield while Paul is moving at 30 mph. Which undergoes the greater acceleration?
a)
Paul
b)
Beetle
c)
both are the same
34.
A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N s.
a)
-2.5
.
.
.
.
b)
-10
c)
-18
d)
-45
35.
Which has the greater change in momentum? An object that stops in a collision or the same object that bounces (rebounds) in a collision. Assume the object has the same speed and time of contact.
a)
Stops
b)
Bounces
c)
Both are the same
36.
T/F: A big truck will always have more momentum than a small car.
a)
True
b)
False
37.
T/F: Two objects that collide will have the same magnitude of impulse.
a)
True
b)
False
38.
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
39.
If two objects collide and stick together, what will happen to their overall momentum?
a)
momentum will decrease
b)
momentum will increase
c)
momentum will stay the same
d)
none of the above
40.
If 2 objects collide and stick together, what will happen to their velocities?
a)
velocities will increase
b)
velocities will decrease
c)
velocities will stay the same
d)
none of the above
41.
The law of conservation of momentum states that,
a)
p before is less than p after
b)
p before is the same as p after
c)
p before is more than p after
42.
Why should you follow through when playing tennis?
a)
To increase the amount of force applied
b)
To increase the amount of time the force is applied
c)
To keep the impulse constant
d)
To minimize the change in velocity
43.
An egg is thrown at a wall and at a bed sheet. The force of impact will be
a)
Greater against the wall
b)
Greater against the sheet
c)
Force is equal
44.
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
45.
A 1kg kick ball flying at 10m/s hits a wall and bounces off at 8m/s. What is the impulse?
a)
2 kgm/s
b)
18 kgm/s
c)
19 kgm/s
d)
20 kgm/s
Reset
