By: Maddie G
Momentum- A characteristic of a moving object that is related to the mass and the velocity of the object.
Conservation of momentum- In the absence of outside forces like friction, the total momentum of objects that interact does not change.
Momentum = Mass x Velocity or p=m x v
We us "P" for momentum because they used the word "impetus" instead of momentum, and this word means "petere" which is Latin.
A heavy moving van can have the same momentum as a small motorcycle if the motorcycle goes fast and the van goes slow.
A sticky collision is when something has the same mass and get tangled together when collided. After the objects collide they share the same momentum.
A non-sticky collision is when two objects of the same mass don't stick together and outside forces (such as friction) are negligible, the objects just trade velocities.
If you threw a piece of clay on the ground it would be a sticky collision because it would stick to the floor and not bounce off.
Angular Momentum- When an object spins around and around like a top instead of going straight. Planets and stars are good examples becuase they all spin around because they orbit.