# #Momentum

### WHat is Momentum?

Momentum is the product of an objects mass and velocity.

The law of conservation of momentum states that, in the absence of outside forces like friction, the total momentum of objects that interact does not change.

Momentum= mass * volume or p=mv

The letter p represents momentum because it likely came from the Latin word "petere" which means "go towards". They couldn't use "m" because that was already used for mass.

A heavy moving van can have the same momentum as a small motorcycle because the van could be slower because it has more weight and since the motorcycle is lighter it can move faster and quicker.

The difference between Sticky collision and Non-sticky collision is Sticky is when two objects with the same mass end up sticking together during a collision. Non-Sticky collision is when two objects of the same mass don’t stick together.

### Elastic COllision

An elastic collision is an encounter between two bodies in which the total kinetic energy of the two bodies after the encounter is equal to their total kinetic energy before the encounter.

### Inelastic Collision

An inelastic collision, in contrast to an elastic collision, is a collision in which kinetic energy is not conserved.

When the clay slams into the ground, some of the kinetic energy of the clay was lost as heat and sound to the ground and air, and some of the heat remains in the clay.

Angular momentum is a measure of the amount of rotation an object has, taking into account its mass, shape and speed. The sun when it rotates around it is angular momentum.