9/9/23, 5:02 PM
9.2 - Conservation of Momentum
NAME :
CLASS :
9.2 - Conservation of Momentum
11 Questions
DAT E :
1.
What is a system called when there is no external force on it?
A
unified
B
isolated
C
closed
D
integral
2.
What happens when a system winds up being isolated?
A
C
All objects will leave the system.
All energy turns to kinetic energy.
3.
B
T he total momentum drops down to
zero.
D
T he total momentum stays the same
during collisions, etc.
After collision, the two objects move off with different velocities.
What type of collision is this?
A
Elastic
4.
T he Law of Conservation of Momentum states:
A
T he total momentum before a collision is
equal to the total momentum after a
B
collision.
T he total momentum before a collision is
greater than the total momentum after a
collision.
C
T he total momentum before a collision is
not related to the total momentum after D
a collision.
T he total momentum before a collision is
less than the total momentum after a
collision.
B
Inelastic
5.
A 10-kg toy truck moves at 5 m/s East. It collides and bounces off of a 5-kg toy car
moving 10 m/s moving West. Which equation would you use to solve for the final velocity
of the car?
A
(m1 + m2 ) vi = m1 v1f + m2 v2f
C
m1 v1i + m2 v2i = m1 v1f + m2 v2f
​
​
​
​
​
​
​
​
​
​
​
​
​
B
​
m1 v1i + m2 v2i = (m1 + m2 ) vf
​
​
​
​
​
​
​
?
​
https://quizizz.com/en-gb/print/6212758f0214af001ef9782c/64525e1bae84e3b58e1d36c1/11
1/3
9/9/23, 5:02 PM
9.2 - Conservation of Momentum
6.
A 10-kg toy truck moves at 5 m/s East. It collides head-on with a 5-kg toy car moving 10
m/s moving West. What is the total momentum of the system?
A
10 kg·m/s
B
0 kg·m/s
C
50 kg·m/s
D
30 kg·m/s
7.
While playing pool, the white cue ball strikes the 8 ball. Before the collision, the cue ball's
velocity was 10. m/s and the 8 ball was at rest. If both balls have a mass of 0.15 kg and the
cue ball's velocity after the collision is 2.0 m/s, what is the 8 ball's velocity?
A
2.0 m/s
B
-2.0 m/s
C
1.5 m/s
D
8.0 m/s
8.
In a physics experiment, two carts of mass 1.5 kg each are rolled towards each other.
T he orange cart has a velocity of 2.0 m/s and the blue cart has a velocity of -1.0 m/s. T he
carts stick together when they collide. Calculate their final speed.
A
0.33 m/s
B
0.50 m/s
C
1.0 m/s
D
0.67 m/s
9.
A large box with a mass of 4 kg slides across a frictionless surface with a velocity of 12
m/s and collides with a stationary smaller box with a mass of 2 kg. T he boxes stick
together. What is the velocity of the two combined masses after collision?
A
8 m/s
B
12 m/s
C
0 m/s
D
4 m/s
10.
An 1 kg object moving to the right at 2 m/s collides inelastically with a 1 kg object moving
to the left at 2 m/s. T he final velocity of both objects will be
A
4 m/s
B
0 m/s
C
2 m/s
D
1 m/s
https://quizizz.com/en-gb/print/6212758f0214af001ef9782c/64525e1bae84e3b58e1d36c1/11
2/3
9/9/23, 5:02 PM
11.
9.2 - Conservation of Momentum
T wo 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
B
momentum
Skater 2 experiences a greater change in
momentum
C
Skater 1 has a greater velocity than
Skater 2
Skater 1 experiences a greater force
D
https://quizizz.com/en-gb/print/6212758f0214af001ef9782c/64525e1bae84e3b58e1d36c1/11
3/3