Question

Why is the weight of the same
object different on different planets ?
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Answer 1

Answer:

An object's weight is dependent on its mass and how strongly gravity pulls on it. The strength of gravity depends on how far away one object is from another. That's why the same object weighsdifferent amounts on different planets. 

Answer 2

Weight depends on gravity. Weight is defined as mass times gravitational force. We know different planets have a different amount of gravitational force. So, the weight varies from planet to planet, because weight depends directly on the gravitational force of an object.

Fun fact: The Moon only has 1/6 the gravity that Earth does. This means you weigh six times less on the Moon than you do on Earth! For example, if your weight is 54 kg on earth, you would weigh merely 9 kg!