# equivalence principle

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Related to equivalence principle: general relativity

## equivalence principle

(i-kwiv -ă-lĕns) The principle that, on a local scale, the physical effects of a uniform acceleration of some frame of reference imitates completely the behavior in a uniform gravitational field. This equivalence of the two frames of reference was introduced by Albert Einstein in his general theory of relativity. It is a generalization of the observed direct proportionality between gravitational and inertial mass.

## equivalence principle

[i′kwiv·ə·ləns ‚prin·sə·pəl]
(relativity)
In general relativity, the principle that the observable local effects of a gravitational field are indistinguishable from those arising from acceleration of the frame of reference. Also known as Einstein's equivalency principle; principle of equivalence.
References in periodicals archive ?
This means that even at quantum scales, the equivalence principle continues to prevail.
Einstein's Equivalence Principle requires that any two photons of different frequencies, emitted at the same time from the same source and traveling through the same gravitational fields, should arrive at Earth at exactly the same time.
inc] are the equivalence incident currents induced by the original source outside according to the equivalence principle.
Therefore, some boundaries must be placed on the use of the equivalence principle to account for this issue.
For example, Einstein's equivalence principle was commonly mistaken (Cheng 2005), as shown in the British Encyclopedia, to be the same as the 1911 preliminary application of equivalence between acceleration and Newtonian gravity.
According to Witten, we need to discover the analog of the Equivalence Principle for string theory.
In accordance with what was said about the old and the new gravitational research programme, Dicke's interpretation of the equivalence principle is a theoretical progressive shift in the relativistic programme.
261101) Physical Review Letters comes 100 years after Einstein developed the equivalence principle, a component of his theory of general relativity, which says that&nbsp;gravitational and inertial forces are&nbsp;similar and (http://abyss.
Why does the coupling of the gravitational force to the SM satisfy the equivalence principle to such a high accuracy?
Subsequently, c-global was also discovered in the equivalence principle of Special Relativity , the very theory in which it had become questionable in late 1907 and been abandoned in 1911.
More specific topics include the conservation of energy and the ballistic pendulum, celestial time, a map without wrinkles, the weak equivalence principle, a letter from Newton, Moon drift and the end of all things, a brief aside on Planck's oscillators, and the double compound pendulum.
This equivalence principle between the inertial and gravitational masses, introduced in classical physics by Galileo Galilei and in modern physics by Albert Einstein, has been confirmed with a very high level of accuracy.

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