* The more massive the objects, the stronger the gravitational force between them. If you double the mass of one object, the force of gravity doubles. If you double the mass of both objects, the force of gravity quadruples.
* The gravitational force is always attractive. No matter what the masses of the objects are, they will always pull on each other.
This relationship is described by Newton's Law of Universal Gravitation:
F = G * (m1 * m2) / r^2
Where:
* F is the force of gravity
* G is the gravitational constant (a fixed value)
* m1 is the mass of the first object
* m2 is the mass of the second object
* r is the distance between the centers of the two objects
Key points:
* The equation shows that gravity gets weaker as the distance between objects increases. This is why we don't feel the gravitational pull of a distant star, even though it has a huge mass.
* The gravitational constant "G" is very small, which is why we don't notice the force of gravity between everyday objects. It's only significant when dealing with very massive objects like planets or stars.
Example:
Imagine you have two objects, one with a mass of 1 kg and the other with a mass of 2 kg. If you double the mass of the heavier object to 4 kg, the gravitational force between them will also double.
