According to Newton's law of universal gravitation, if the distance between two point masses is doubled while the masses remain the same, how does the gravitational force change?

In an experiment, which of the following measurements depends directly on the gravitational force (and therefore changes when moving from Earth to the Moon)?

In Newton’s law of universal gravitation, $F=G\frac{m{}_{1}m{}_2}{r^2}$, which two qualities of objects determine the strength of the gravitational force between them?

In the context of Newton's law of universal gravitation, what force is primarily responsible for the mutual attraction that drives mass movements (such as planets orbiting stars or objects falling toward Earth)?

In the context of Newton's law of gravity, what force is primarily responsible for the mutual attraction that drives the motion of massive objects such as planets and moons?

According to Newton's law of universal gravitation, the magnitude of the gravitational force between two point masses is $F=G\frac{m{}_{1}m{}_2}{r^2}$. Which variables determine the value of $F$ (assuming $G$ is constant)?

According to Newton's law of universal gravitation, what is the magnitude of the gravitational force exerted on an object of mass $m$ by a second object of mass $M$ at a center-to-center separation $r$?

In Newton's law of universal gravitation, the magnitude of the gravitational force between two point masses is $F=G\frac{m{}_{1}m{}_2}{r^2}$. Which two factors determine the value of $F$ for a given pair of objects?

In Newton's law of universal gravitation, the magnitude of the gravitational force between two point masses is $F=G\frac{m{1}_{\mathrm{}}m{2}_{\mathrm{}}}{r^2}$. Which two factors determine the strength of the gravitational force?