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Gravity(g) is a function of a planets mass(m) and how big it is or radius(r) squared
g=m/r2
The mass of Uranus is 14 times greater than Earth, but it's radius is 4 times greater than Earth.
So approximately 14/16 = 0.875
The gravity on Uranus is actually 0.886g whereas Earth is 0.99732.
It is not weaker than Earth's gravity, as for it has more mass.
Gravity does not have a size, smaller would be an incorrect term.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoBecause gravity is related to mass and distance from the centre of the object.
Neptune has a mass of 1.0243 x 1026 kg and a radius of 24,764km,
Uranus has a mass of 8.681 x 1025 and a radius of 25,559km.
So gravity = GM/(r2)
where G = constant of -6.67 x 1011
M=mass
r = radius in meters
So for Neptune, g = 6.67 x 10-11 x 1.0243 x 1026 / 247640002 gives a gravity of 11.14 m/s
For Uranus g = 6.67 x 10-11 x 8.681 x 1025 / 255590002 gives a gravity of 8.86 m/s
So in simplistic terms, Uranus has less mass "Pulling Power" and has a greater distance (radius) to "pull" through.
The Earth for comparison has a mass of 5.9736 × 1024 kg and a radius of only 6,378 km but has a gravity of 9.78 m/s
Wiki User
∙ 11y agoUranus is not small. It is in fact the third largest planet in the solar system.
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Why is planet earth the have the weakest gravity?
It doesn't. Mercury, Venus, Mars, and Pluto have less gravitational acceleration at their surface than Earth has. That leaves only Jupiter, Saturn, Uranus, and Neptune with stronger gravity.
What planets are bigger than earth but smaller than neptune?
No planet is smaller than Neptune, but larger than Earth in diameter, but Uranus is there in mass. Uranus, even though larger, is less massive than Neptune. Neptune is a giant planet, but not as large as we believe. It is just 3 or 4 times larger than Earth in diameter, but is 16 times massive. Even Uranus is just 13 times. Jupiter and Saturn are much much bigger than all these planets.
Why did Uranus and Neptune end up to be much less massive than Jupiter and Saturn?
because jupiter & saturn ate more aliens than uranus & neptune.
Is there more or less gravity on Neptune then on earth?
Neptune has slightly more gravity than Earth. It is believed that the gravity is 17% greater than Earth's.
Why does Uranus have more mass but less gravity than earth?
Earth is not the most dense planet.The density of Earth is only 5.515 g/cm3 , butthe density of planet Kepler-70b (in the Cygnus constellation) is 64 g/cm3 !See Sources and related links below.
Does planet Uranus have more or less gravity than earth?
The "surface gravity" is less on Uranus.
Why is planet earth the have the weakest gravity?
It doesn't. Mercury, Venus, Mars, and Pluto have less gravitational acceleration at their surface than Earth has. That leaves only Jupiter, Saturn, Uranus, and Neptune with stronger gravity.
What planets are bigger than earth but smaller than neptune?
No planet is smaller than Neptune, but larger than Earth in diameter, but Uranus is there in mass. Uranus, even though larger, is less massive than Neptune. Neptune is a giant planet, but not as large as we believe. It is just 3 or 4 times larger than Earth in diameter, but is 16 times massive. Even Uranus is just 13 times. Jupiter and Saturn are much much bigger than all these planets.
Do you way less on Uranus?
there is less gravity so you weigh less
Why did Uranus and Neptune end up to be much less massive than Jupiter and Saturn?
because jupiter & saturn ate more aliens than uranus & neptune.
Is there more or less gravity on Neptune then on earth?
Neptune has slightly more gravity than Earth. It is believed that the gravity is 17% greater than Earth's.
Why does Uranus have more mass but less gravity than earth?
Earth is not the most dense planet.The density of Earth is only 5.515 g/cm3 , butthe density of planet Kepler-70b (in the Cygnus constellation) is 64 g/cm3 !See Sources and related links below.
What is the main size of Uranus?
Uranus is the 3rd largest planet in diameter but in mass (8.683e25 Kg) it's less then Neptune
Is the gravity on neptune more or less than earths?
about 12% more
Uranus has a bigger or less speed than Jupiter?
Uranus has a lower orbital speed than Jupiter.
Why does Neptune take less time than Earth to spin around once?
Neptune is bigger then earth
Does Uranus have Weaker or stronger gravity than Earth?
The "surface gravity" is slightly less than on Earth.
