By Ian Chambers

This tackk is about momentum, and the facts a more about it

Momentum is the quantity of motion of a moving body, measured as a product of its mass and velocity.

Conservation of mass is a conservation law stating that the total linear momentum of a closed system remains constant through time, regardless of other possible changes within the system.

The formula for momentum is p=mv, the p stands for momentum, the m stands mass, and the v stands for velocity. On the website, physics for kids it says, "no one is quite sure why "p" is used for momentum. It likely came from the Latin word "petere" which means "go towards".

A heavy moving van has the same momentum as a small mortercycle because of the Law of conservation of momentum. The Law of conservation of momentum states that in the absence of outside fources like friction, the total momentum of objects  that interact does not change.

There are two types of collsions, a sticky colision, and a non-sticky colison. A Non-sticky colisions 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. A Sticky colision is when objects end up sticking together during a colision. For example if one car is at rest, and another is going 5 miles an hour. Since the one car is going 5 miles an hour and the other was at rest, after they collided they stuck together because they shared the same momentum.

                       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. Elastic collisions occur only if there is no net conversion of kinetic energy into other forms.

inelastic collision

Inelastic collision-An inelastic collision, in contrast to an elastic collision, is a collision in which kinetic energy is not conserved. In collisions of macroscopic bodies, some kinetic energy is turned into vibrational energy of the atoms, causing a heating effect, and the bodies are deformed.

If i threw a piece of clay on the floor it would be a sticky collision because the clay would just stick to the floor and not bounce right off the floor.

angular momentum is the quantity of rotation of a body, which is the product of its moment of inertia and its angular velocity. This has to do with outer space because our planets, and other planets orbit around stars.