09-4 thru 09-6 Linear Momentum, Collision, Impulse
09-7 Conservation of Linear Momentum
09-8 thru 09-10 Momentum and KE in Collisions, Inelastic/Elastic Collisions in One Dimension
09-11 Collisions in Two Dimensions
Video - Understanding Car Crashes: It's Basic Physics
Video - Conservation of Momentum This video demonstrates the difference between internal and external forces and their effects on momentum.
Video and analysis of Fiona and Robin Hood's completely inelastic collision.
Video - Kinetic energy transforms to thermal energy