Q:

What is the gravitational force of each planet?

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Quick Answer

A planet's size and mass determines its gravitational force it has on objects and people. Five planets are smaller than Earth and only two are larger.

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Full Answer

To understand how each planet's gravitational force differs from Earth's, consider Earth as having a pull of 100%. Mercury and Mars are the two smallest planets, and their pull is 38% of Earth's. Uranus comes in third at 80% and Venus is 91%. The planet decorated with rings, Saturn has the closest pull to Earth's at 93%. Things get a bit heavier on Neptune, which has a pull of 20% more than Earth, and the massive planet of Jupiter has an incredible pull of 254%, which would make a person 154% heavier than on Earth.

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Related Questions

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    What is a dwarf planet?

    A:

    A dwarf planet is a celestial body that orbits the sun and is large enough to assume a round shape but has not cleared its orbital path of similar objects. There are five known dwarf planets as of 2014: Pluto, Ceres, Eris, Haumea and Makemake.

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    Why is Pluto not a planet?

    A:

    In 2006, the International Astronomical Union changed Pluto's classification from a planet to a dwarf planet because the planet has not cleared its orbit of other objects. When a planet clears its orbit, all other objects on the orbital path are either drawn into the planet's gravitational pull or flung away from it and out of the orbit.

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    What is the force of gravity on Mars?

    A:

    The force of gravity on the planet Mars is only about 38 percent as strong as that on Earth. Surface gravity on Mars is much weaker than that of Earth due to the planet's small size and relatively low mass.

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  • Q:

    What are the requirements to be classified as a planet?

    A:

    In 2006, the International Astronomical Union defined a planet as a body that is in orbit around the sun, has enough mass to establish a round shape, and has cleared other debris from the neighborhood of its orbit. This ruling famously resulted in the demotion of Pluto to dwarf planet status, since Pluto did not have the gravitational influence to clear other bodies from its orbital path.

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