Final answer:
The force that pulls objects together is known as gravity, a fundamental force that causes objects with mass to attract each other.
Step-by-step explanation:
The force that pulls objects together is called gravity. Gravity is one of the four fundamental forces in the universe, alongside the electromagnetic force, the strong atomic force, and the weak force. It acts between any two pieces of matter in the universe, and it is the reason why apples fall to the ground and planets orbit stars. In physics, we often refer to the net force, which is the vector sum of all individual forces acting on an object. For two objects interacting with each other, the gravitational force between them is represented by vectors pointing towards each other, indicating the attraction.