8bf0eb34_PMM_physics__About_friction__Type
[...and something about it] Steel balls bouncing on a stone floor demonstrate elasticity. Both stone and steel are hard materials and to a certain extent elastic. However, after a while, the steel balls come to a rest. The reason is not only air resistance, but an inner deformation work which consumes the mechanical energy and transforms it into heat. [Type] 
elastic deformation
s l i d i n g f r i c t i o n
r o l l i n g f r i c t i o n
e l a s t i c d e f o r m a t i o n
p l a s t i c / i n e l a s t i c d e f o r m a t i o n
l i q u i d f r i c t i o n
e l e c t r o m a g n e t i c f r i c t i o n
t i d a l f r i c t i o n
s o u n d
PMM physics. About friction
Type