Final answer:
On the Moon, a person's weight is less compared to Earth due to the weaker force of gravity, but their mass remains the same.
Step-by-step explanation:
Weight is dependent on the acceleration due to gravity, so on the Moon, where the force of gravity is much less than on Earth, a person's weight would be less. Therefore, option 5) A person's weight on the moon is less than on earth, due to the force of gravity, is true. Mass, on the other hand, remains the same regardless of location. So option 6) A person's mass remains the same no matter where in the universe they are, is also true.