Question

an object of the same mass has three different weights at different times. which statement is possible? the object gains matter and then loses it. the object started on earth, was transported to space, and was deposited on the moon. the object started at the bottom of a hill, then moved to the top of the hill, and then moved back down to the bottom of the hill. the object changes shape, which changes its weight.

Explanation:

Weight is the force exerted on an object due to gravity. Mass is the amount of matter in an object and is constant. Gravity varies in different locations. Earth has a certain gravitational pull, space has near - zero gravity, and the moon has a weaker gravitational pull than Earth. So, an object's weight will be different in these locations while its mass remains the same. Changing shape doesn't change weight (assuming no change in mass or gravitational field), moving up and down a hill on Earth has a negligible effect on weight due to the small change in gravitational field, and gaining and losing matter changes mass, not just weight in the context of this question.

Answer:

The object started on Earth, was transported to space, and was deposited on the moon.