An astronauts helmet measured on a balance has the same number of kilograms on both Earth and the Moon On a spring scale thought it registers more newton on Earth than on the moon Why?

Answer 1

"Kilogram" is not a unit of weight. It's the unit of "mass" ... the amount of "stuff" of which an object is composed. Neglecting any relativistic effects, the mass of an object doesn't change, regardless of what planet or what moon it may be on, or whether it's in a spacecraft on its way somewhere. The mass in "kilograms" is constant. If you compare it to a known mass, using a balance scale, the comparison is always the same.

But the "weight" of a mass depends on what else is around, i.e. what it's being attracted to on account of gravity. The mass doesn't change, but its weight does ... it's more on earth, less on the moon, incredibly high on Jupiter or on the sun, and zero in space.

Answer 2

The helmet's mass is the same on both Earth and the Moon, but weight is different due to the difference in gravitational pull. The spring scale measures weight, which is the force exerted on an object due to gravity, so it will show a higher value on Earth where gravity is stronger compared to the Moon.

Answer 3

Yy

Answer 4

i dont know