When the distance between two stars doubles, the force between them
A)decreases by one-quarter.
B)decreases by one-half.
C)increases to twice as much.
D)increases to four times as much.
E)remains the same.

Question

Quizplus · Accepted Answer

According to Newton's law of universal gravitation, the force between two masses is inversely proportional to the square of the distance between them. Therefore, if the distance doubles, the force decreases by a factor of four (1/2^2 = 1/4).

When the Distance Between Two Stars Doubles, the Force Between