Jim'sCosmicScience

This Editable PowerPoint reviews the 1st and 2nd Laws, and then introduces a taxonomy of Names and Symbols for commonly encountered forces; contact and non-contact. Four real-life examples are used to show how to identify the forces present (and not present!) and create an accurate properly labelled Free Body Diagram. Finally, the Normal force is explained at a micro-physical level, and common confusions dispelled.

This fully editable PowerPoint explains the concept of isotopes in terms of Rutherford's nuclear atom. Students learn to write the names and symbols for isotopes, and how the natural mixture of isotopes determines average atomic mass. The concept of radioactive vs stable isotopes is introduced using a nuclide chart.

This is a beginning worksheet with lots of scaffolding to get kids started making and using conversion factors and understanding how units cancel out in calculations.