Mechanics - The Study of Motion, Forces and Energy:
Speed: How Quickly Motion Occurs:
Velocity: Speed and Direction:
Scalars and Vectors [NASA] - Very helpful picture included to show the difference between scalar and vector quantities. Skim through the paragraphs below, but it is a little over what you will learn this module.
Velocity: Speed and Direction 2:
Sahm I Am! - Experiment 9.1 This is a blog-post from Sahm I Am! Her post includes useful photos and descriptions of their experiment, along with an awesome explanation of what they learned! I wanted to share her great post.
Acceleration: The Rate of Change in Velocity:
The Acceleration Due to Gravity:
Hammer vs Feather - Physics on the Moon [NASA - Galileo and Apollo 15] This video features the experiment the previous video speaks briefly about.
The Acceleration Due to Gravity 2:
Introduction to Free-Fall and the Acceleration due to Gravity This video is a little long (12:11) but it is a great explanation.