We introduce students to the concept that the movement of an object is always relative to something else. We call it "sunrise" but does the sun really rise? Can we stand still and move around from place to place at the same time? If a car is moving forwards, can it also be moving backwards at the same time? And can we throw a single ball towards the left and towards the right at the same time? The answers to all these questions will be answered and along the way we will gain a much deeper understanding of velocity and acceleration!

Streaming video file encoded with permission for digital streaming by Infobase on June 13, 2016.

Part A: Introduction --(3:05) -- Part B: Relative Velocity -- (10:59) -- Part C: Frames of Reference -- (8:33) -- Credits: Shedding Light on Motion: Episode 3-Relative Motion -- (0:23).