The force of attraction between two objects can vary depending on several factors, depending on the type of force you're considering. Here's a breakdown for the most common types:

1. Gravitational Force:

* Mass of the objects: The more massive the objects, the stronger the gravitational attraction between them.

* Distance between the objects: The gravitational force decreases rapidly as the distance between the objects increases. It's an inverse square law, meaning if you double the distance, the force becomes four times weaker.

2. Electromagnetic Force:

* Charge of the objects: The force is stronger for objects with larger charges. Opposite charges attract, and like charges repel.

* Distance between the objects: The force decreases rapidly as the distance between the objects increases. This is also an inverse square law.

* Permittivity of the medium: The force is weaker in materials with higher permittivity, such as water, compared to vacuum.

3. Strong Nuclear Force:

* Distance between nucleons: This force is extremely strong over very short distances within the nucleus of an atom. It's the force that holds protons and neutrons together. It rapidly weakens as distance increases.

4. Weak Nuclear Force:

* Distance between particles: This force is responsible for radioactive decay and is also short-ranged.

5. Van der Waals Force:

* Polarizability of the molecules: The force is stronger for molecules that are more easily polarized.

* Distance between the molecules: The force is stronger at shorter distances.

Note: It's important to remember that these forces can act together, and their combined effect can be complex. For example, the force between two electrically charged objects will be influenced by both the electrostatic force and gravitational force.