2007-10-29 15:08:49 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
1. The material it's made of. If it's made of a dense material such as rock, it will have a small radius for it's mass and have higher surface gravity.
2. The quantify of the material. The more material there is, the more mass. Mass has gravity.
3. The temperature. If it's cold so it's solid it will have a small radius and higher surface gravity. It it's hot so it's just gas, it will have a larger radius and therefore lower surface gravity.
The previous posters are all correct because they're just referring to the formula to calculate gravity.
2007-10-29 16:39:46 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The object's mass and radius determine the surface gravity of a planet or satellite, along with it's density.
2007-10-29 22:26:42 · answer #2 · answered by Anonymous · 0⤊ 0⤋
For a spherical object, surface gravity is directly proportional to radius and density. Twice the diameter at the same density will give you twice the gravity, as will twice the density at the same diameter. To some extent density may be affected by size, because the gravitational pressure of a larger body will produce a higher internal pressure. If the material is compressible, the average density will be higher in a more massive body.
2007-10-29 23:59:06 · answer #3 · answered by injanier 7 · 0⤊ 0⤋
Mass, the greater the mass the greater the gravitational field generated by the mass, this applies to a planet or a satellite, or a star or any other body in the cosmos.
2007-10-29 22:25:20 · answer #4 · answered by johnandeileen2000 7 · 0⤊ 0⤋
Its mass, and the distance between it and the place you are while measuring the gravity of it. The Universal Gravitational Constant.
2007-10-29 22:13:47 · answer #5 · answered by DynamiteAnswers 2 · 1⤊ 0⤋
mass and radius assuming a sphere
2007-10-29 22:15:05 · answer #6 · answered by Steve A 7 · 0⤊ 0⤋
Its a matter of mass.
2007-10-29 22:18:51 · answer #7 · answered by stargrazer 5 · 0⤊ 0⤋