Impulse:Impulse is the change in momentum of an object when a force is applied to it for a certain amount of time. It can be calculated by multiplying force and time.
Conservation of Momentum:This principle states that in a closed system where no external forces act, the total momentum before an event is equal to the total momentum after the event.
Elastic Collision:An elastic collision occurs when two objects collide and bounce off each other without any loss of kinetic energy.