This astronaut is on a space walk while orbiting Earth.

What would happen to the force of gravity between the astronaut and Earth if the distance between them doubled?
A. It would be one-fourth as much.
B. It would be one-half as much.
C. It would be two times as much.
D. It would be four times as much.

1 answer

A. It would be one-fourth as much.

According to Newton's law of gravitation, the force of gravity between two objects is inversely proportional to the square of the distance between them. Therefore, if the distance between the astronaut and Earth doubled, the force of gravity would decrease by a factor of 2^2, which is 4. This means that the force of gravity would be one-fourth as much as before.