Question

How does the mass of an astronaut change when she travels from earth to the moon? how does her weight change?

Answer 1

Her weight doesn't change but thats only simply because there is no gravity in space.

Answer 2

Answer:

Mass does not change

Weight redueces on the moon

Explanation:

The mass of an object never changes with respect to the astronomical body it is on. The mass of an object is the resistance it provides to a force which is applied.

A 1 kg object is an 1 kg object anywhere in the universe.

Weight is the affect of an astronomical object's gravity on it

$W=mg$

where,

m = Mass of the object

g = Acceleration due to gravity

$g_e$=Acceleration due to gravity on Earth = 9.81 m/s²

$g_m$=Acceleration due to gravity on Moon = 1.62 m/s²

Weight on Earth

$W_e=mg_e\\\Rightarrow W_e=9.81m$

Weight on Moon

$W_m=mg_m\\\Rightarrow W_m=1.62m$

Dividing the equations we get

$W_m=\frac{1.62}{9.81}W_e\\\Rightarrow W_m=0.165W_e$

The weight of the astronaut on the moon will be 0.165 times the weight on Earth.

So, the weight of the astronaut will be reduced on the moon