Explain why weight of an object on moon is only `(1)/(6)th` of the weight of the object on earth.

If mass of earth is roughly 80 times the mass of moon and diameter of earth is roughly 3.6 times the diameter of moon, show that weight of an object on moon will be roughly (1)/(6) th of the weight of the object on earth.

Why is the weight of an object on the moon is (1)/(6) th its weight on the earth?

The weight of an object on the moon is equal to of its weight on the earth.