In a way, size does not effect a planet's "gravity", its mass does. The more mass a planet has, the stronger its gravitational force.
But the "surface gravity" is affected by the radius of the planet. That's because it depends on the distance of the surface from the center of the planet.
The important equation here is based on Newton's Law of Gravitation:
Gravitational Force = G x M x m / d x d (where G is the Gravitational constant,
M is the planet's mass, m is the mass of an object being attracted, and d is the
distance between the centers of the masses).
The strength of gravity will be proportional to the mass of the planet, and inversely proportional to the square of its diameter (since the combined effect of the gravity, of different parts of the planet, is that gravity seems to come from the center of the planet). Therefore, if two planets have the same density, but one has twice the diameter of the other, its gravity will be twice as strong (mass = 8 times as much; inverse square of the distance = 1/4).
It depends on size and mass.
The earth is fairly small and a surface gravity of 1G.
Jupiter is the largest but not the densest with a surface gravity of about 2.5 Gs.
Neptune just over 1G and much bigger than earth.
The sun would float on any of these densities but it's surface gravity is just about 30 Gs.:DD hope this helped
It affects the "surface gravity" because that depends inversely on the square of the distance of an object from the center of mass ofthe planet.
The pull of an object's gravity is proportional to its mass, if measured at a standard distance.
Yes it does. All objects have gravity but the amount of gravity depends on the mass of the object.
There is gravity on all planets. The strength of that gravity varies depending on the size and mass of each planet.
No. The surface gravity of a planet depends on its size and mass, not its distance from the sun.
The larger the planet is, the more amount of gravity you will get. The smaller the planet is, the less amount of gravity you will get.
The gravity of the star is usually many times larger than the planets due to the overwhelming mass of the star in comparison. The planets do have a gravitational pull of their own though, which has an effect on the star it is orbiting. It will cause the star to move slightly off centre as it pulls on the star during its orbit. The bigger the planet, the bigger the pull. By looking at distance stars, astronomers can see the effects of planets by observing a 'wobble' in the star as the unseen planets orbits it. They can then calculate the size of the planet and distance by the size and speed of the wobble.
because the suns gravitational pull is so large that the planets stay close to together
The larger the mass of the planet, the greater the force of its gravity.
Yes it does. All objects have gravity but the amount of gravity depends on the mass of the object.
Earth technically has a weak gravity because it is one of the smallest planets compared to the others. The greater the size or mass the more gravitational pull it has.
There is gravity on all planets. The strength of that gravity varies depending on the size and mass of each planet.
Because of Earth's size, and considering it as one of the smallest planets, it has a weak gravity compared to the OTHER planets. Most planets have greater gravity because of their size. Earth has a stronger gravity compared to mars, mercury, and venus.
No. The surface gravity of a planet depends on its size and mass, not its distance from the sun.
Earth has the strongest gravitational pull.
The larger the planet is, the more amount of gravity you will get. The smaller the planet is, the less amount of gravity you will get.
No. They increase in weight.
It depends on their size, mass, distance and strength of gravity.
The closer the distance, the greater the pull of gravity between them.