1. If two objects move closer, the force gravitational force between them is going to increase
2. If the mass of the objects increase, then the gravitational force is going to increase
3. If only one object decreases in mass, the gravitational force would decreases too
4. If the objects move further from each other so the distance increases, then the gravitational force would decrease too.
The mass is directly proportional to the gravitational force
The distance is inversly proportional to the gravitational force