Explains the difference of speed and velocity and this link also gives examples of acceleration. The article is small and on the right column of the website, the main page describes mass and other content we have not really covered. The examples are given in a way that we can comprehend. There is a comprehension check at the end of the article.
A real source; applies the first law of motion/inertia. It goes on to explain the other laws, but provides activities to use. The activities answer questions that we answered in class.
Provides definitions for basic physics. Can be applied to what we know and there are more definitions to be applied later.
We study physics because it can ground us to other sciences. Physics is the most basic science and provide answers for a natural occurrence. Physics provides background for learning.