GETTING A GRIP ON GRAVITY Einstein’s general theory of relativity explains gravity as a distortion of space (or more precisely, spacetime) caused by the presence of matter or energy. A massive object generates a gravitational field by warping the geometry of the surrounding spacetime.
Regarding this, what affects gravitational acceleration?
g is majorly affected by the following four factors: The shape of the Earth. Rotational motion of the Earth. Altitude above the Earth’s surface. Depth below the Earth’s surface.
Similarly one may ask, why does gravity hold us down? So how come you feel only the pull of gravity? In 1915, Albert Einstein figured out the answer when he published his theory of general relativity. The reason gravity pulls you toward the ground is that all objects with mass, like our Earth, actually bend and curve the fabric of the universe, called space-time.