This document defines and describes concepts related to motion, including: - Motion is defined as a change in an object's position over time. Characteristics of motion include position, trajectory, distance traveled, displacement, time, speed, and acceleration. - Uniform linear motion occurs when an object's trajectory is a straight line and its speed is constant. Accelerated motion occurs when an object's speed changes. - Acceleration is defined as the change in an object's speed over time. Forces are what can change an object's speed or deform it, causing accelerated motion. - Several word problems are provided as examples to calculate distances, speeds, times, and positions given values in uniform and accelerated motions