Bounce, to have a

To drop or force something that has elastic potential, (Usually a spherical object, such as a Ball so the forces of gravity pull the object towards the earth's core. On contact with the earth's crust the elastic potential is changed into kinectic energy propelling the object back on a simular or at a opposite reflected angle. This is consided to be one bounce, but a object may bounce more than once if it has the energy sufficient to do so.