When the force of gravity on an object changes?

Answer 1

The force of gravity (or any force) obey's Newton's Second Law of motion: the force applied to a body is equal to the time derivative of it's momentum. In cases where the mass is constant (practically all of introductory physics and much of graduate-level physics), force is equal to mass times acceleration. (F = ma)

Answer 2

Gravity can change depending on the mass/density of the planet. It also changes a little based on your position on the planet. For example, if you are at the equator of the earth, your body weight has a very slight difference if your were at one of the poles.

Answer 3

The mass of the gravitational body in question (Compare Earth's gravity with that of Mars, which has a smaller mass than Earth), or another gravitational field (See the Moon's effects on oceanic tides).

Answer 4

Short answer: Changing the distance.

Longer answer:
The force of gravity depends on the two objects' mass and distance. Changing any of those will affect the pull of gravity.
For example, if you gain weight, Earth pulls stronger on you (and you pull stronger on the Earth).
Another example: if you are flying on an airplane, you weigh a little less than you do at sea level.

Answer 5

depend on how big or small the object is, the greater the more gravtational pull it has, smaller the object is less gravatational pull it has. if the object changes mass well that when the gravitatonal pull becomes either stronger or weaker, but all depends.

Answer 6

In fact there is no gravity in this world there is only the air pressure that controls and hold the objects in this world.I can prove this

Answer 7

weight