1. What is momentum?

A. The mass of an object divided by its velocity B. The mass of an object multiplied by its velocity C. The energy of an object in motion D. The rate at which an object speeds up

2. Why is momentum considered a vector quantity?

A. Because it has both magnitude and direction B. Because it is based on mass alone C. Because it depends on the force applied D. Because it is not affected by direction

3. Which of the following best describes impulse?

A. A measure of how fast an object moves B. A change in momentum due to a force applied over time C. The energy transferred from one object to another D. The amount of mass in motion Answer: B

4. What does the law of conservation of momentum state?

A. Momentum is always conserved in all interactions. B. Momentum can be created or destroyed in isolated systems. C. The total momentum of a closed system remains constant if no external forces act on it. D. Momentum is only conserved in elastic collisions.

5. In a collision, if the total momentum before the collision is zero, then the total momentum after the collision must be:

A. Greater than zero B. Equal to zero C. Less than zero D. Cannot be determined without more information