|MLA Citation:||Bloomfield, Louis A. "Question 1318"|
How Everything Works 13 Dec 2017. 13 Dec 2017 <http://howeverythingworks.org/print1.php?QNum=1318>.
But hardness does have an important effect on bouncing from a non-rigid surface. When a hard object collides with a non-rigid surface, the surface does some or all of the deforming so that the surface becomes involved in the energy storage and bounce. If the surface is elastic, storing energy well when it deforms, then it will make the object rebound strongly. That's what happens when a steel marble collides with a rubber block. However, if the surface isn't very elastic, then the object will not rebound much. That's what happens when a steel marble collides with a thick woolen carpet.