Objectives
After studying the material of this chapter, you should be able to:1. Define linear momentum and write the mathematical formula for linear momentum from memory.
2. Distinguish between the unit of force and momentum.
3. Write Newton's Second Law of Motion in terms of momentum.
4. Define impulse and write the equation that connects impulse and momentum.
5. State the Law of Conservation of Momentum and write, in vector form, the law for a system involving two or more point masses.
6. Distinguish between a perfectly elastic collision and a completely inelastic collision.
7. Apply the laws of conservation of momentum and energy to problems involving collisions between two point masses.
8. Define center of mass and center of gravity and distinguish between the two concepts.(Extra)
HW. PROBLEMS SET CH7 any 20 to include 12 toatal stars....
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VIDEO 15 CONSERVATION OF MOMENTUM
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Comment on Blog
http://www.learner.org/resources/series42.html?pop=yes&pid=565#
I felt that the video covered a lot of what the chapter discussed. My only main question is how do you determine which way two billiard balls would go after they collide? They discussed it around 11 minutes into the video, but the diagram confused me.
ReplyDeleteThe statement "collisions are the only way we have of finding out about the subatomic world" was a pretty interesting concept covered in video. It was pretty much just a summary of chapter 7, and when they discussed the problems that related to billiard balls, it gave me a better picture of what is actually happening. The text does a nice job of explaining, but the video helped me fully understand the varied conservation of energy scenarios.
ReplyDeleteRachel Rha
I'm having trouble finding the actual video to watch??
ReplyDeleteI was having trouble finding the video as well
ReplyDeleteDoes anyone know what the extra credit he mentioned in class was?
ReplyDeleteOk so here it goes... Prove in an elastic collision showing all the algebraic steps why when a LARGE object hits a small object the velocity of the small object can never be greater than 2x the velocity of the large. This als explains why club speed/racquet speed/bat speed/stuck speed is the quintessential factor in sport that involve an object being struck...
ReplyDeleteYou must include momentum and impulse