Is the equivalence principle useful for understanding general relativity?

The Equivalence Principle (EP) is at the heart of General Relativity (GR), tested in many aspects. It often used to discuss qualitatively influence gravity on physical phenomena. But can this be made more precise? We compare clock rates, frequency shifts, light deflection and time delay simple static spacetimes analogous phenomena seen by accelerated observers Minkowski space. In contrast previous studies, we do not assume that gravitational field weak see, as proceed, how constrained EP. Special care taken results are only observer-, but coordinate-dependent. By clarify some issues raised literature show which effects cannot simulated acceleration. paper may also serve a contribution for critical discussions implications