principle-equivalence

equivalence principle

Also called Einstein's equivalency principle, principle of equivalence.


Origin:
1915–20

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principle of equivalence

noun Physics.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Science Dictionary
equivalence principle   (ĭ-kwĭv'ə-ləns)  Pronunciation Key 
A principle central to General Relativity stating that a gravitational field is locally indistinguishable from the effects of inertial forces. For example, according to the equivalence principle, it is impossible for someone in a box who experiences a force pushing him to the bottom of the box to know, from the force alone, whether that force is the result of a gravitational field (the box is standing on the surface of a planet) or an acceleration (the box is being pushed by a rocket).
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