* Universal: Gravity affects everything in the universe, from tiny particles to massive stars.
* Attractive: It always pulls objects together, never pushes them apart.
* Dependent on Mass: The more massive an object is, the stronger its gravitational pull.
* Dependent on Distance: The closer two objects are, the stronger the gravitational force between them.
Newton's Law of Universal Gravitation quantifies this relationship:
* F = G * (m1 * m2) / r²
Where:
* F is the force of gravity
* G is the gravitational constant (a very small number)
* m1 and m2 are the masses of the two objects
* r is the distance between the centers of the two objects
In simpler terms:
* The bigger the objects, the stronger the pull.
* The closer the objects, the stronger the pull.
Examples:
* The Earth's gravity keeps us on the ground and pulls the moon into its orbit.
* The sun's gravity holds all the planets in our solar system in their orbits.
* The force of gravity is what causes objects to fall to the ground when dropped.
Gravity is a fundamental force that shapes the universe, controlling the motion of stars, galaxies, and everything else.
