See Also: equivalence principle(encyclopedia)
Revenue principle or realization principle(finance)
Equivalence(medicine)
equivalence(dictionary)
Stimulus equivalence(health)
Equivalence zone(health)
Yield equivalence(finance)
Equivalence trial(health)
Cash Equivalence(money)
equivalence zone(medicine)

equivalence principle (sh)




Fundamental principle of physics that in its weak form states that gravitational (see gravitation) and inertial (see inertia) masses are the same.

Albert Einstein's stronger version states that gravitation and acceleration are indistinguishable. It implies that the effect of gravity is removed in a suitably accelerated reference frame, such as an elevator with its cable cut, in which a person would experience free fall.