  In a uniform gravitational field, classical test objects fall universally.
Any reference object or observer will fall in the same universal manner.
Therefore, a uniform gravitational field cannot create dynamics between
observers and classical test objects. The influence of a uniform gravitational
field on matter waves and clocks, however, is described inconsistently
throughout research and education. To illustrate, we discuss the behavior of a
matter-wave interferometer and a clock redshift experiment in a uniform
gravitational field. As a consistent formulation of the equivalence principle
implies, a uniform gravitational field has no observable influence on these
systems and is physically equivalent to the absence of gravity.
