The force of gravity is directly proportional to the product of the masses of the two objects and inversely proportional to the square of the distance between their centers. This means:

* Larger masses: The more massive the objects, the stronger the gravitational force.

* Closer distance: The closer the objects are to each other, the stronger the gravitational force.

Therefore, if two objects are close together, the force of gravity exerted between them will be stronger.