Question

Any one want to give me the simple definitions for these words??? Ill give a medal .

Answer 1

Elastic Collision
Inelastic Collision
Kinetic Energy
Momentum
Perfectly elastic collision
Perfectly inelastic collision

Answer 2

check this: http://www.physicsclassroom.com/mmedia/
under Momentum and Collisions, there are animations for these words,
with examples and their explanations
hope that helps :)

Answer 3

momentum: A measure of how difficult it is to stop a moving object; equal to the product of mass and velocity.

kinetic: energy that a body possesses by virtue of being in motion.

inelastic: 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.

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.

perfectly elastic collision: Energy and momentum are conserved (they are the same before and after). The less elastic the collision is the more energy is lost in the collision to things such as heat or sound.

perfectly 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

hope this helps

Answer 4

momentum = m v
kinetic energy = (1/2) m v^2
elastic: no kinetic energy is lost
inelastic: some kinetic energy is lost