What gravity means, what it is used for in practice, what it depends on, practical examples and correlation with the movement of objects, what Newton's law states.
Definition of gravity
The same force that allows you to keep your feet on the ground holds the whole universe together.
The force of gravity extends through space and unites planets, stars and galaxies of the solar system, keeping them united in groupings made up of huge galaxies.
Gravity is the force that attracts two masses, bodies or particles.
Newton realized that a force was needed to change the speed or direction of movement of an object.
Furthermore, he came to the conclusion that the force of gravity also causes an apple to fall from a tree and that men and animals can remain glued to the ground, without being thrown away by the effect of the rotation of the earth, only thanks to it.
Hence the conclusion that there is a gravitational attraction between all bodies.
Newton's law states that the gravitational force affecting any two objects is proportional to the product of their masses, and inversely proportional to the square of their distance.