However, the weight of an object, which is the force of gravity acting on its mass, does change with distance from the Earth.
Here's why:
* Newton's Law of Universal Gravitation: The force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
* At the Earth's Surface: The weight of an object is the force of gravity acting on it at the Earth's surface.
* Two Radii Away: When the object is two Earth radii away from the Earth's center, the distance between the object and the Earth's center is three times greater than at the surface. According to Newton's Law, the force of gravity (and thus the weight) would be 1/9th of what it is at the surface.
In summary: The mass of the object remains the same, but its weight decreases by a factor of 9 when it is two Earth radii away from the surface.