Conservation Linear Momentum(General Knowledge > General Science ) Questions and answers for exam Preparation

Question 1. What two variables effect momentum?

mass, Velocity
weight, Velocity
height ,weight
Velocity, height

Explanation:-

Answer: Option A. -> mass, Velocity

Question 2. Two metal balls collide in an elastic collision

Yes
No

Explanation:-

Answer: Option A. -> Yes

Question 3. Two carts collide

Yes
No

Explanation:-

Answer: Option A. -> Yes

Question 4. If there is a perfectly inelastic collision, which of the following must be true?

The total momentum of the system is 0
The total kinetic energy of the system is conserved
The objects stick together after colliding
The total momentum of the system is not conserved

Explanation:-

Answer: Option C. -> The objects stick together after colliding

Question 5. A BMW rear ends a car at the stop light

Elastic Collision
Inelastic Collision
Perfectly inelastic Collision
No Collision

Explanation:-

Answer: Option B. -> Inelastic Collision

Question 6. 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

0 m/s
1 m/s
2 m/s
4 m/s

Explanation:-

Answer: Option A. -> 0 m/s

Question 7. In this type of collision, objects tend to "stick" together

elastic
inelastic
They "stick" together in both types of collisions

Explanation:-

Answer: Option B. -> inelastic

Question 8. A 60 kg basketball player stands still to catch a ball

0.15 m/s
0.085 m/s
-0.085 m/s
-0.15 m/s

Explanation:-

Answer: Option B. -> 0.085 m/s

Question 9. When the speed of an object is doubled, its momentum

remains unchanged in accord with the conservation of momentum.
doubles
quadruples
decreases

Explanation:-

Answer: Option B. -> doubles

Question 10. A 2 kg cart has a momentum of 16 kg m/s

8 m/s
32 m/s
0.125 m/s
18 m/s

Explanation:-

Answer: Option A. -> 8 m/s