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Because planets don't consist of pure mass. They are shells. The faster the planet rotates the more centrifugal force is applied and all of the matter gets pushed outside. Jupiter is flattened at the top and bottom because of this force. Hurricanes and Tornadoes all have a hollow interior because of centrifugal force when they are spinning. This is why the faster a planet spins the larger it gets (it would be safe to say that a larger planet has a thinner crust).
Comments:
1) There are obvious exceptions to this "rule", but there does seem to be a link between planet mass and rotation speed.
2) There is the problem of dealing with two very different types of planets (terrestrial planets and gas planets).
3) From what I've read, planetary scientists have not yet got a complete
theory to explain this phenomenon. There are several theories.
Angular momentum seems to be very important.
What else can I help you with?
Do other planets rotate?
Yes, some faster than others. In fact, virtually all spacial bodies rotate.
Do the gas planets rotate slower or faster than earth?
Gas planets typically rotate faster than Earth. For example, Jupiter rotates the quickest with a day length of about 10 hours, Saturn has a day length of about 10.7 hours, Uranus about 17 hours, and Neptune about 16 hours. In comparison, Earth rotates once every 24 hours.
Do Jovian planets rotate faster than Terrestrial planets?
Yes, Jovian planets rotate faster than terrestrial planets. For example, Jupiter completes a rotation in about 10 hours, while Earth takes roughly 24 hours. This difference is mainly due to the Jovian planets having a greater amount of mass and their composition, which affects their rotation speeds.
Why do the outer planets spin faster than the inner ones?
The outer planets are composed mostly of gases, which do not have a solid surface like the inner planets. This lack of solid surface allows the outer planets to rotate more quickly, as there is less resistance for their rotation. Additionally, the outer planets have more mass, which also contributes to their faster rotation.
Which planets rotate from east to west?
Venus and Uranus are the two planets in our solar system that rotate from east to west, which is known as retrograde rotation. Most planets, including Earth, rotate from west to east.
Why do larger planets rotate on their axis faster than smaller ones?
Larger planets have more mass and therefore more gravitational pull, which accelerates their rotation. This is related to the conservation of angular momentum, where a larger planet will naturally rotate faster to balance its increased mass.
Do gas planets rotate around their axes faster than rock ones?
Yes, gas planets tend to rotate faster around their axes than rocky planets. This is because gas giants like Jupiter and Saturn have less dense atmospheres and larger sizes, which allows them to rotate more quickly due to conservation of angular momentum. Rock planets like Earth and Mars have denser compositions and smaller sizes, leading to slower rotation speeds.
Why do planets have different day lenghts?
Planets have different day lengths due to variations in their rotation speeds and sizes. Planets closer to the Sun, like Mercury, have shorter day lengths because they rotate faster. Larger planets, such as Jupiter, have longer day lengths due to their slower rotation speeds.
Do other planets rotate?
Yes, some faster than others. In fact, virtually all spacial bodies rotate.
Do the gas planets rotate slower or faster than earth?
Gas planets typically rotate faster than Earth. For example, Jupiter rotates the quickest with a day length of about 10 hours, Saturn has a day length of about 10.7 hours, Uranus about 17 hours, and Neptune about 16 hours. In comparison, Earth rotates once every 24 hours.
What is the characteristics of the outer planets?
All outer planets have a gaseous atmosphere and are larger than planets the inner planets it also takes them longer to rotate the sun they are typically colder and have more moons.
Do Jovian planets rotate faster than Terrestrial planets?
Yes, Jovian planets rotate faster than terrestrial planets. For example, Jupiter completes a rotation in about 10 hours, while Earth takes roughly 24 hours. This difference is mainly due to the Jovian planets having a greater amount of mass and their composition, which affects their rotation speeds.
Why does the length of a day and year vary from planet to planet?
Some planets rotate faster or than others. Also the planets take different times to orbit the Sun.
Do smaller wheels go faster?
No, they just rotate at more revolutions that a larger wheel at the same speed.
Do all planets except earth rotate?
All planets rotate. Even earth.
Which planets rotate on an axis?
All of the planets in the Universe rotate on an axis. They all do.
Is jupitre a gassey planet?
Yes. Jupiter and so are the other outer planets are called "Gass Giants". Though they're massive, they can rotate faster than the inner planets.
