This document provides an overview of forces and Newton's laws of motion. It defines a force as a push or pull and discusses contact and action-at-a-distance forces. Newton's first law states that an object will remain at rest or in motion unless acted upon by a net force. The net force is the vector sum of all individual forces on an object. Newton's second law establishes that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass. The SI unit for force is the newton.