Physics Momentum

Momentum

● Impulse

● Force

● Collision

● Elastic Collision

● Inelastic Collision

● Explosion

● Conservation

What is momentum?

● What kinds of objects have momentum?

● How can you change momentum? (two answers)

o Which one are you more likely able to change?

● What are the units of momentum?

● What is impulse?

● What is the difference between “impulse” and “change in momentum?”

● What are units of impulse?

● How can you maximize the impulse/change in momentum? (two answers)

● When an object comes to rest, the impulse is the same no matter how that object comes to rest...

o What is the relationship between impulse and time of impact?

o What is the relationship between impulse and force of impact?

o So how can you control the force of impact?

● Why are large, fast objects harder to stop than small, slow objects?

● What does it mean to say that momentum is conserved in a system?

● Compared with falling on a stone floor, a coffee mug may not break when it falls on a carpeted

floor because...

● When two pool balls in an isolated system collide, the overall momentum of the system...

● Name three real world things that are used to protect us by reducing momentum over a long

period of time. (Increased time means decreased force)

● Why does a softball/tennis/volleyball/golf/etc. player follow through with their swing when they

hit the ball?

● Why do airplanes need such a long landing strip/runway?

● On April 15, 1912, the luxury cruise liner Titanic sank after running into an iceberg. Explain why it

would have been useless if the captain had seen the iceberg from a kilometer away and had turned

the ship’s engines off in an effort to avoid a collision.