e/Nordtvedt effect

Information
has gloss	eng: In theoretical astrophysics, the Nordtvedt effect refers to the relative motion between the Earth and the Moon which would be observed if the gravitational self-energy of a body contributed to its gravitational mass but not its inertial mass. If observed, the Nordtvedt effect would violate the strong equivalence principle, which shows that an object's movement in a gravitational field does not depend on its mass or composition.
lexicalization	eng: Nordtvedt effect
instance of	c/Effects of gravitation