1. Conservation of Momentum

2. Angular Momentum

3. Newton’s Law of Gravitation

4. Kepler’s Laws Explained
All three of Kepler’s law can be explained by Newton’s gravity
Ellipses are special cases: bound orbits
2nd law follows from central force and conservation of angular momentum
Newton’s form of Kepler’s 3rd law: p2 = p2 a G(M1+M2)

6. Exact Time of High Tide

8. Tidal Force

9. Ocean Tides Ocean levels rise and fall twice per day
The level of tides is related to the lunar phases
Ocean tides are a combined effect of the Moon’s and Sun’s tidal forces

10. Escape Velocity