1. Momentum

2. Explain what is happening in the picture… Why did the blond-haired kid miss getting the chips? What does the kid need to do in order to get the chips?

3. Momentum Depends on an object’s mass and the object’s velocity. The amount of momentum NEVER changes…it is just transferred to another object. p = m x v (p = momentum)

4. Examples of objects with momentum A car driving down the road A person running A wrecking ball A frisbee in the air A football player tackling another player

5. Solving for Momentum p = m x v Units are kg m/s kg is from MASS (m) m/s is from VELOCITY (v)

6. Example What is the momentum of a 6 kg bowling ball that is moving at 10 m/s down the alley toward the pins? 6 kg x 10 m/s = 60 kg m/s

7. Another Example An 85 kg man is jogging with a velocity of 2.6 m/s North. Nearby, a 65 kg girl is skateboarding and is traveling with a velocity of 3 m/s South. When they collide, who is hit with more momentum?

8. Answer Man’s momentum = 85 kg x 2.6 m/s 221 kg m/s Girl’s momentum = 65 kg x 3 m/s 195 kg m/s The girl is hit with more momentum! OUCH!!!

9. Law of Conservation of Momentum Any time objects collide, the total amount of momentum stays the same. Momentum cannot be lost…only transferred!!

10. Examples Pool balls colliding on a pool table Bumper cars Boxing A dog running into a wall