1. ICP 1/29/13 Momentum and Gravity

2. Warmup Pay close attention to the video. Questions will follow.

3. Warmup 1)What factors allowed Ray Lewis to be able to knock down the door? 2)Explain some ways that someone could protect a door so that it is Ray Lewis-proof.

4. Agenda Universal Law of Gravitation Lesson Go through examples of how distance and mass affect gravity. Vocabulary Chapter 12

5. Universal Law of Gravitation F = Gm 1 m 2 d 2 G = 6.67 x 10 -11 Radius of earth, d = 6.4 x 10 6 m Earth’s mass = 5.97 x 10 24 kg

6. Vocabulary Chapter 12 Inertia Weight Mass Terminal velocity Projectile motion Momentum Law of conservation of momentum