How many times bigger is the Earth than the Moon?

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Mark C. Share
Jul 19, 2017

This is true, however the Earth is approximately 6 times more massive.

Explanation:

We think the Earth-Moon system formed from a collision several billion years ago. The moon took a disproportionately large quantity of the surface of the earth, which is less dense, and the collision left us with an unusually large, hot and active core. As a result the moon is less dense on average than the Earth, so whilst it is true the Earth is 3.7 times larger, it is significantly more massive. As a result our value of g is 9.81 $\frac{m}{s} ^ 2$ whereas on the Moon it is approx. 1.6$\frac{m}{s} ^ 2$

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