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Answered 2012-02-27 03:13:15

The acceleration of gravity at the surface of each terrestrial planet is proportional

to the mass of each planet and inversely proportional to the square of the planet's

radius, with Newton's gravitational proportionality constant, and is not correlated

in any way with any characteristic of the planet's atmosphere.

In other words: It ain't related.

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How is Newton's law of gravity related to the movement of the planets?


A high surface gravity helps to retain a planets atmosphere, preventing gas molecules from escaping into space. There are other factors too, particularly surface temperature.


The larger the mass of the planet, the greater the force of its gravity.


Generally speaking, the bigger or more massive a planet it, the more gravity it has, since gravity and mass are related. the small planets such as Mars and Mercury have a weaker gravity, while the larger planets have a strong gravitational field.



Mercury is the least massive of the eight planets (there are dwarf planets which are smaller, such as Pluto and Eris). Gravity is directly related to mass.


Because gravity is related to mass, so the more massive a planet is, the more gravity it has.


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In the case of our Solar System:* The terrestrial planets are closer to the Sun. * The gas giants are much larger than the terrestrial planets. * The gas giants don't have a surface on which you can stand. A related fact is that gas giants have a much lower average density.


The main effects are those related to gravity - which keeps the planets in orbit - and sunlight - which keeps the planets warm.


That is related to the fact that the Moon has less gravity - its escape velocity is less. This allows any atmosphere to evaporate into space within a reasonable time.


The atmosphere is held in place by the earth's gravity. Gravity is related to mass, the more mass a planet has, the more gravity. A much smaller planet like mercury or a body such as the moon will have less gravity, not enough to hold an atmosphere - the gravity is not strong enough to prevent the gas particles from escaping into space.


Mass and Gravity. Every planet has gravity, because it is related to their Mass. (I know this is a lame answer, but whatever).


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There is a force that unites the tides, planets and black holes. Tides are generally thought of as the rise and fall of the level of the oceans due to the gravitational effects of the moon and the sun. Planets have gravity proportional to their masses, and black holes are points of massive gravity. Gravity or its effects unite the three things listed.


In a word, mass. Gravity is directly related to mass, and the mass of the sun is monumental compared with the mass of earth and the other planets.


It is possible for any of he gas giants to have them, it is commonly Jupiter or Saturn which the clouds are related to.


All planets have gravity - on some it is more powerful than on others.Here is a list of all the planets and the gravity they have (related to earth's as 1)׃Mercury......0.377Venus.........0.904Earth..........1.000Mars...........0.377Jupiter........2.535Saturn........1.064Uranus........0.904Neptune......1.140


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