Gravity or the force of gravity or the force of gravity . Newton was the first to give an idea about the force of gravity. It is said that one day Newton was sitting under an apple tree when an apple fell on his head. Thinking about why the apple fell to the ground, he got an idea of the force of gravity. The force of attraction that acts between any two objects in this solar system is called the gravitational force. And if one of these two objects is the earth, then this force is called gravitational force. Gravitational force is also commonly known as "gravitational force" , although force and force are not the same thing. So the force of gravity is a part of the gravitational ball. Gravitational force is one of the four basic forces in the world.