Absolutely. The two factors that affect gravity are density and volume. For example Jupiter has 11 times the diameter, and 1400 times the volume of Earth, and yet only experiences 2.5 times the gravitational pull of earth. The reason is the density of Jupiter is 1/4 that of Earth.
If you decrease a planet's orbital radius, its surface temperature will increase.
By far the most significant factor is the mass of the planet, thus, primarily effects which alter mass would be those which affect the gravitational field. There are some relativistic effects which can affect mass or gravity such as speeds approaching that of light, and also spin which can alter the radial component of the gravitational field, through the frame dragging effect (usually explained through general relativity's description of gravitation as a curvature of spacetime).
The acceleration due to gravity on the surface of the planet would be four times greater than that of Earth. This is because the acceleration due to gravity is directly proportional to the radius of the planet, and inversely proportional to the square of the radius. Since the radius of the planet is half that of Earth, the acceleration due to gravity would increase accordingly.
The weight of an object on the surface of a planet with radius r is determined by the planet's mass and the object's distance from the planet's center. The weight can be calculated using the formula W (G M m) / r2, where W is the weight, G is the gravitational constant, M is the planet's mass, m is the object's mass, and r is the radius of the planet.
The force of gravity is proportional to the masses of the two objects and inversely proportional to the square of the distance between them. As a result, a gravity of one fourth that on the surface of the Earth would be observable at an altitude equal to the radius of the Earth, i.e. 6400 km. Note: This is up, in the air, not down, into the Earth. This distance is in outer space.In the other direction, the force of gravity gets smaller as one goes deeper into the earth. This is because the mass outside your current radius (as you descend) does not contribute. The mass inside your current radius is proportional to the cube of the radius. Gravity is proportional to this mass divided by the square of the radius. Therefore, gravity decreases linearly with the radius. So the acceleration of gravity is equal to one fourth its value at the earth's surface at one fourth of the earth's radius, or a depth of approximately 4800 km.
The distance between a planet and an object affects the gravitational force between them. That means the size of a planet affects the value of the "surface gravity" for that planet. The greater thedistance from the surface to the center of the planet, the smaller the gravity at the surface (for the same planet mass). An example is the fact that Mars and Mercury have almost exactly the same surface gravity. Mars has more mass than Mercury, but this is balancedby the fact that Mercury hasthe smaller radius.
Its mass. More mass=more gravity Also the distance from the planet's center to its surface, i.e. its radius.
No. The gravitational pull at the surface of a planet depends on that planet's mass and radius. Jupiter has the strongest gravity of any planet in the solar system: 2.53 times the surface gravity on Earth. Mercury has the weakest surface gravity at just 37% the gravity on Earth.
The weight of an object on the surface of a planet depends on ...-- The mass of the object.-- The mass of the planet.-- The distance between the center of the object and the centerof the planet, i.e. the planet's radius.
Planet sizes are directly related to their surface gravity due to their mass and radius. Larger planets typically have greater mass, which increases their gravitational pull. However, if a planet is significantly larger but less dense, its surface gravity may not be as high as expected. Thus, surface gravity is influenced by both the planet's size (radius) and its density (mass per unit volume).
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.
There's a very definite relationship ... which we can write as a fairly simple mathematicalformula ... between the planet's mass, its radius, and the acceleration of gravity at its surface.
-- The product of the masses of the planet and the object on its surface; -- The distance between their centers of mass ... roughly the planet's radius.
Apart from the mass, you must also consider the distance. In the case of the surface gravity, that would be the radius of the planet.
The gravity of a planet is directly proportional to its mass, and inversely proportional to the square of the distance from the center of mass. For the gravity on the surface of the planet, the distance is just the planet's radius. Thus, if a planet has three times the mass, it has three times the gravity. If you are three times as far away, the gravity decreases by a factor of nine.
-- If the mass of Mars increases, then its surface gravity also increases. -- If the mass of Mars decreases, then its surface gravity also decreases. -- So long as its radius does not change, the acceleration due to gravity on or near the planet's surface is directly proportional to its mass.
If you decrease a planet's orbital radius, its surface temperature will increase.