A block of iron is transported to the Moon.Which of the following is true?
A)both its mass and weight remain unchanged.
B)its mass decreases, but its weight remains the same.
C)its mass remains the same, but its weight decreases.
D)both its mass and weight decrease.

Question

Quizplus · Accepted Answer

The mass of the block of iron remains the same because mass is a scalar quantity and is independent of the gravitational field. The weight of the block of iron, however, would decrease because weight is a vector quantity and depends on the gravitational field strength. The gravitational field strength on the moon is much weaker than that on the earth, therefore, the weight of the block of iron reduces while its mass remains the same.

A Block of Iron Is Transported to the Moon