According to , this force is defined by several key characteristics:
The of gravitational forces is that they are always attractive ; unlike electromagnetic forces, which can both pull and push, gravity only pulls objects together. Licensed by Google Gravitational Forces
: Although it gets weaker with distance, gravity technically never drops to zero, meaning it influences the motion of stars and galaxies across vast stretches of space. According to , this force is defined by
: The strength of the force decreases rapidly as the distance between objects increases. If you double the distance, the force becomes four times weaker. If you double the distance, the force becomes
: The more mass an object has, the stronger its gravitational pull. This is why you feel the Earth's gravity but not the pull of a nearby building.
: Every object with mass in the universe attracts every other object, no matter how far apart they are.