Elastic vs Inelastic Collisions

1. Collisions where objects BOUNCE apart.

• inelastic collisions

• elastic collisions

• explosions

• none of these

Tags

NGSS.HS-PS2-2

2. Momentum before = Momentum after

according to the Law of Conservation of __________________________.

• Momentum

• Energy

• Force

• Acceleration

Tags

NGSS.HS-PS2-2

3. Two Pool Balls collide and then go separate directions.

• inelastic collision

• explosion

• elastic collision

• none of these

Tags

NGSS.HS-PS2-2

4. Collision where objects collide, and stick together.

• inelastic collision

• explosion

• elastic collision

• none of these

Tags

NGSS.HS-PS2-3

5. For every action, there is an equal and opposite reaction.

• Newton's 1st Law

• Newton's 3rd Law

• Newton's 2nd Law

• none of these

6. Which TWO variables determine the MOMENTUM for an object?

• time

• density

• velocity

• mass

Tags

NGSS.HS-PS2-2

7. Action: Your foot applies a downward force onto the floor.

• Your foot pushes through the floor.

• The floor applies an equal and opposite force upward on your foot.

• Your foot bounces off of the floor.

• The floor collapses.

Tags

NGSS.HS-PS2-1

8. A car has 10,800 Kg x m/s of momentum as it collides with a trash dumpster AT REST. How much TOTAL MOMENTUM will the car and dumpster have after collision?

• Less than 10,800 Kg x m/s

• The same. 10,800 Kg x m/s

• More than 10,800 Kg x m/s

• Not enough information.

Tags

NGSS.HS-PS2-2

9. An insect applies 1.5 N of force to a windshield of a moving car. How much force does the windshield apply to the insect?

• 15,000 N

• 0.5 N

• 1.5 N

• Not enough information

Tags

NGSS.HS-PS2-1

10. What is the TOTAL MOMENTUM for the system BEFORE COLLISION?

• 14 Kg x m/s

• 24 Kg x m/s

• 10 Kg x m/s

• -24 Kg x m/s

Tags

NGSS.HS-PS2-2