1. Conservative Forces and Non-Conservative Forces
Physics I Class 13
Conservative Forces and
Non-Conservative Forces

2. Conservation of Energy (Review)

3. Conservative Forces Non-Conservative Forces

4. Is Mechanical Energy Always Conserved?

5. Example of Energy Lost to Friction (Non-Conservative Force)

6. Example of Energy Lost to Friction (Non-Conservative Force)

7. Elastic and Inelastic Collisions

8. Elastic Collisions in One Dimension

9. Elastic Collisions in One Dimension

10. Elastic Collisions in One Dimension - Example

11. Class #13 Take-Away Concepts

12. Activity #13 Conservation of Energy II

13. Class #13 Optional Material Elastic Collisions in 2/3D

14. Center of Momentum Reference Frame

15. Analyzing the Collision in the Center of Momentum

16. Transform Back to the Laboratory Frame of Reference