According to Newton's law of universal gravitation, if the distance between two bodies is tripled, the gravitational force between them is
A) unchanged.
B) tripled.
C) reduced to 1/3 its previous value.
D) reduced to 1/9 its previous value.
E) increased by factor of 9.

Question

Quizplus · Accepted Answer

According to Newton's law of universal gravitation, the gravitational force between two bodies is inversely proportional to the square of the distance between them. This means that if the distance is tripled, the force will be reduced to 1/9th of its previous value. Therefore, the correct answer is D, reduced to 1/9th its previous value.

According to Newton's Law of Universal Gravitation, If the Distance