Q:

# What is the gravitational force of each planet?

A:

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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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

• A:

Weight is the measure of the gravitational force on an object. Weight is related to mass but is actually a separate property. Weight and mass are often treated as interchangeable because gravity on Earth does not vary much based on location.

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• A:

As the distance between two objects decreases, the gravitational force between them increases. Conversely, as the distance between them increases, the gravitational force decreases. Gravitational force is inversely proportional to the distance between two objects squared.

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• A:

The magnitude of the gravitational force acting on an object, F, is proportional to the universal gravitational constant, G, and the product of the two masses involved, m and M. It is inversely proportional to the distance between the objects, r, squared.