Question

If the amount of gravitational force on an object changes, which of the following would also change?

Answer 1

As accurately described by Einstein's theory of relativity, gravity is not necessarily a force, but a consequence of the curvature of space time that is caused by the uneven distribution of mass. But this could also be approximated by Newton's Law of Universal Motion. Gravity is a force acting upon two objects with masses at a certain amount of distance. So, the greater the mass, and the closer the objects are, the greater is the force of gravity.

Now, gravitational force in Earth is equal to 9.81 m/s². But its value on the moon is different: 1.622 m/s². In this case, your weight changes depending on where you are because the gravitational force will vary. According to Newton's Second Law of Motion, F = mg. Weight is describe as the force that pulls you toward the center of an object. So, weight = mass × gravity. Mass is constant, but gravity is not. Thus, that is how weight changes when gravity also does.