The authors study the oscillation of the solutions of the nonlinear second order dynamic equation with damping
on a time scale that is, on a nonempty closed subset of the real numbers. (For the definition of (delta) derivative and other related notions on dynamic equations, the reader is referred to [M. Bohner and A. Peterson, Dynamic equations on time scales: An introduction with applications. Basel: Birkhäuser (2001; Zbl 0978.39001)]). By imposing appropriate conditions (too involved to be described here) to the maps and the authors establish a series of results ensuring the oscillatory character of the above mentioned dynamic equation. It is worth mentioning that by using this general approach of time scales, the authors unify the study of differential and difference equations (when and respectively), and extend and improve some known results existing already in the literature. Moreover, they obtain new results for the time scales , among others.