How is the gravity on earth diffrent from the moon?
In general terms, Gravity depends on mass and the radius. But to be more careful in comparisons, we take the relative density. g=GM/(r^2) As the relative density increases, the gravity also increases resulting in a space warp, the space-time becomes curved and anything that comes around bends its path. Since Moon is having lesser mass than earth and lesser radius, so we take in account the relative density which is lesser than earth. and calculating it, the moon’s gravity becomes 1/6th of earth. but being more accurate, if we take the the moon’s gravity, then, though we can neglect it, but the earth’s gravity and also gravity from sun and other celestial bodies, the the space-time curve deepens towrds the baricenter that is the the the point where all the effect of mass of various bodies effecting the gravity is supposed to be concentrated, so the heavenly body in space tries to be attracted towards the baricenter of bigger masses.