Question

part a
mass and weight: the acceleration due to gravity is lower on the moon than on earth. which one of the following statements is true about the mass and weight of an astronaut on the moons surface, compared to earth?
both mass and weight are less.
mass is less, weight is the same.
mass is the same, weight is less.
both mass and weight are the same.

Explanation:

质量是物体所含物质的多少，是物体的固有属性，不随位置改变。而重量\(W = mg\)（\(m\)是质量，\(g\)是重力加速度），月球上重力加速度\(g\)比地球上小，质量\(m\)不变，所以重量变小。

Answer:

Mass is the same, weight is less.