Question

Which of the following is inversely proportional to the gravitational force between two masses?
A. The mass of each object.
B. The velocities of each object.
C. The distance between each object.
D. The distance between each object squared.

Answer 1

\[F _{g} = \frac{ G m _{1} m _{2} }{ r ^2}\]

Remember, we just discussed this topic. The gravitational force is directly proportional to the mass, and is inversely proportional to the square of the distance.

Increase the mass by a factor of three, the gravitational force increases by a factor of three.

Increase the distance by a factor of three, the gravitational force decreases by a factor of nine.

Answer 2

Moved to the Physics section.