Summary: Interval oscillation criteria are established for second-order forced delay dynamic equations on time scales containing mixed nonlinearities of the form
where is a time scale, a fixed number; is a time scale interval; ; the functions are right-dense continuous with nondecreasing; are nondecreasing right-dense continuous with , ; and the exponents satisfy
All results are new even for and . Analogous results for related advance type equations are also given, as well as extended delay and advance equations. The theory can be applied to second-order dynamic equations regardless of the choice of delta or nabla derivatives. Two examples are provided to illustrate one of the theorems.