Answer 1-8, use the table for the last question

Conceptual Practice: 1. An object that has a small mass and an object that has a large mass have the same momentum. Which object has the largest kinetic energy? 2. An object that has a small mass and an object that has a large mass have the same kinetic energy. Which mass has the largest momentum? 3. Football coaches advise players to block, hit, and tackle with their feet on the ground rather than by leaping through the air. Using the concepts of momentum, work, and energy, explain how a football player can be more effective with his feet on the ground. 4. How can a small force impart the same momentum to an object as a large force? - 5. Explain in terms of impulse (change of momentum) how padding reduces forces in a collision. State this in terms of a real-world example (you can't use the air bag or pillow landing example from the notes, come up with a different example.) 6. While jumping on a trampoline, sometimes you land on your back and other times on your feet. In which case can you reach a greater height and why? Explain in terms of impulse. 7. Can momentum be conserved for a system if there are external forces acting on the system? If so, under what conditions? If not, why not? 8. A baseball player holds a bat loosely and bunts a ball. Express your Before After understanding of momentum conservation by determining a, b, and c in Collision Collision the table to the right. Make sure to explain each of your answers Bat Ball