The two variables that affect the gravitational force between two objects are

1) The mass of the objects: The gravitational force between two objects is directly proportional to the product of their masses. As the mass of one or both objects increases, the gravitational force between them also increases.

2) The distance between the objects: The gravitational force between two objects is inversely proportional to the square of the distance between their centers. As the distance between the objects increases, the gravitational force decreases. Conversely, as the distance decreases, the gravitational force increases. This relationship is known as the inverse square law.

The two variables that affect the gravitational force between two objects are:

1. Mass: The first variable is the mass of the two objects. The gravitational force between two objects is directly proportional to the product of their masses. In other words, the larger the mass of either object, the stronger the gravitational force between them.

2. Distance: The second variable is the distance between the centers of the two objects. The gravitational force between two objects is inversely proportional to the square of the distance between them. This means that as the distance increases, the gravitational force decreases. Similarly, as the distance decreases, the gravitational force increases.

It is important to note that the gravitational force between two objects is a universal force of attraction and is described by Newton's law of universal gravitation.

The two variables that affect the gravitational force between two objects are the mass of the objects and the distance between them.

To understand how these variables affect the gravitational force, it is important to rely on Newton's law of universal gravitation. The formula for the gravitational force (F) between two objects can be expressed as:

F = (G * m1 * m2) / r^2

Where:
- F represents the gravitational force between the objects.
- G is the gravitational constant (approximately 6.67430 × 10^-11 N m^2/kg^2).
- m1 and m2 are the masses of the two objects.
- r is the distance separating the centers of the objects.

From this formula, we can determine the effect of each variable on the gravitational force:

1. Mass (m1 and m2): The gravitational force is directly proportional to the product of the masses of the objects. Thus, an increase in the mass of either object will result in a greater gravitational force. Conversely, if the mass decreases, the gravitational force will be weaker.

2. Distance (r): The gravitational force is inversely proportional to the square of the distance between the objects. This means that as the distance between the objects increases, the gravitational force decreases rapidly. Alternatively, as the distance decreases, the gravitational force becomes considerably stronger.

By manipulating the variables of mass and distance in the formula, we can calculate the gravitational force between two objects in any given scenario.