Here's why:
* Newton's Law of Universal Gravitation: This law states that the force of gravity between two objects is directly proportional to the product of their masses. This means that if you increase the mass of either object, the gravitational force between them will increase proportionally.
* Example: The Earth has a much larger mass than a small rock. Therefore, the gravitational force between the Earth and the rock is much stronger than the gravitational force between two small rocks.
In simpler terms: Imagine two magnets. The stronger the magnet, the stronger its pull on other magnetic objects. Gravity works similarly; the more massive an object, the stronger its gravitational pull on other objects.
