I think that gravity exerts an attractive force that gives the material potential energy.
None. Gravity IS the force in this case.
The answer is gravitational attraction. It is the attractive force between all objects that have mass. It's between you and me, you and your PC, and between everything.
Gravity exerts an acceleration a= GM/r2 = v2/r.
The fource of Gravity.
gravity
Anything that has mass exerts a gravitational field, so yes, earth exerts one.
the mass of the earth exerts gravity on all objects around it
Gravity is an attractive force which means that each of the two massive bodies (planets) involved are drawn to each other. It isn't just one sided. Gravity is also a universal force and a mutual force, in case those are what you are looking for. Gravity is affected by mass and distance.
Mass.
In our daily life on Earth, we call that the object's "weight".
Yes, and it stays put because the force of the Earth's gravity is stronger than the velocity that air molecules gain from temperature increases. Only the lightest molecules (hydrogen and helium) are lost to space again.
Every planetary body (including the Earth) is surrounded by its own gravitational field, which exerts an attractive force on all objects. (http://en.wikipedia.org/wiki/Gravitation). Because of gravity of earth we stay on the earth.