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- 1. Multiple Choice
Which of the following statements describes momentum?
the product of body’s mass and velocity
the product of body’s mass and acceleration
the sum of body’s mass and velocity
the sum of body’s mass and acceleration
- 2. Multiple Choice
What type of quantity are momentum and velocity?
director
reactor
scalar
vector
- 3. Multiple Choice
What is the unit for momentum?
kgm/s
kgm/s2
Nkg
Nm/s
- 4. Multiple Choice
What word can best describe the total momentum in an isolated system?
constant
large
lost
low
- 5. Multiple Choice
Calculate the momentum of a car, which has a mass of 1000 kg and moves with a velocity of 20 m/s.
500 kgm/s
10, 020 kgm/s
20000 kgm/s
99 980 kg m/s
- 6. Multiple Choice
The total momentum of two objects before collision is 450 kgm/s. What will be their total momentum after collision?
0 kgm/s
175 kgm/s
350 kgm/s
450 kgm/s
- 7. Multiple Choice
Two objects with a total mass of 20 kg has an initial momentum of 100 kg∙m/s. If the masses stick together after the collision, what is the final velocity of the masses?
1 m/s
5 m/s
50 m/s
100 m/s
- 8. Multiple Choice
Two billiard balls with mass 1.0 kg each are travelling towards each other. The first one is moving at a velocity of 3 m/s, while the other one moves at a velocity of -2m/s. After the collision, one billiard ball moves to the left at a speed of 2 m/s. What is the speed of the other ball?
-3 m/s
-2 m/s
2 m/s
3 m/s
- 9. Multiple Choice
A 2.0-kg chunk of putty moving at 5.0 m/s collides with and sticks to a 8.0-kg bowling ball that is initially at rest. The bowling ball with its putty passenger will then be set in motion with what speed?
1 m/s
2 m/s
3 m/s
4 m/s
- 10. Multiple Choice
A 125 kg car moving at 12 m/s hits a 200 kg car moving at -13m/s. If the first car bounces back at -12.5 m/s what is the velocity of the second car after the collision?
1.2 m/s
2.3 m/s
3.2 m/s
4.1 m/s
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