COLLISION A ITS TYPES

Question 1

1.What is the fundamental characteristic of a collision?

Accepted Answer

Object exerting forces on each other over a relatively short time.

Question 2

6. A car crash where the vehicle crumple is an example of what type of collision?

Accepted Answer

c. elastic

Question 3

4. Which of the following is an example is an example of elastic collision (ideally)?

Accepted Answer

c. Two billiard ball colliding

Question 4

9. The concepts of momentum conservation in collisions is vital in designing:

Accepted Answer

c. Protective sports equipment

Question 5

7. How do air bags in cars reduces injuries during collision?

Accepted Answer

b. They decrease the time of impact, thus decreasing the force., c. They increase the time of impact, thus decreasing the force.

Question 6

In which type of collision is Kinetic energy conserved? a. Inelasticb. Perfectly inelastic c. elasticd. all of the above

Accepted Answer

c. elastic

Question 7

What happens to the object after a perfectly inelastic collision?

Accepted Answer

b. They stick together and move as one

Question 8

8. Which scenarios best represents a perfect inelastic collision?

Accepted Answer

b. Two train cars coupling together.

Question 9

10. If two objects of equal mass collide head-on with equal speeds, and stick together, what is their final velocity?

Accepted Answer

c. Zero

Question 10

5. In an elastic collision, what is always conserved?

Accepted Answer

c. Momentum

Questions 10