PHYSICS 12 WCLN.ca Unit 4 ~ Learning Guide Name: Jaxon Smith Instructions: Using a pencil, complete the following notes as you work through the related lessons. Show ALL work as is explained in the lessons. You are required to have this package completed BEFORE you write your unit test. Do your best and ask questions if you don't understand anything! Momentum. 1. Since momentum is based on the same concepts as Newton's laws, why do we find it necessary (and/or convenient) to work with the concept of momentum? 2. Describe the difference between elastic and inelastic collisions. 3. Derive the general conservation of momentum for two objects involved in an elastic collision starting with Pbefore = Pafter- 4. Derive the general conservation of momentum for two objects involved in an inelastic collision starting with Pbefore = Pafter- 5. Derive the general conservation of momentum for an object exploding into two objects starting with Pbefore = Pafter