The mass and weight will be less on the Moon. The mass and weight will be greater on the Moon. The mass will be the same, but its weight will be less on the Moon. The mass will be the same, but its weight will be greater on the Moon.
I gave my students this multiple choice question: Earth is about 81 times more massive than the Moon. How will the mass and weight of a rocket on the Moon compare to its mass and weight on Earth?

Only one answer is correct among these 4 choices:
- The mass and weight will be less on the Moon.
- The mass and weight will be greater on the Moon.
- The mass will be the same, but its weight will be less on the Moon.
- The mass will be the same, but its weight will be greater on the Moon.

Could you tell me which one is correct?

The mass will be the same, but its weight will be less on the Moon.