Study/Cheat Sheets
Be they summaries or new insights, you'll find these "cheat" sheets priceless. More will be added on a regular basis. And teachers, feel free to hand these out, we just ask you refer your students to our website/channel.
Here we'll calculate the range of a baseball or an arrow.
This sheet will remind you how to define sin, cos, tan, as well as csc, cot, and sec.
Four simple ray diagrams with one object each - (1) converging mirror, (2) converging lens, (3) diverging mirror, (4) diverging lens.
Diverging mirror and lens with all possible locations for the object. All images are virtual as shown.
Equilateral, scalene, acute -- what do those terms mean?
Simple methods of finding these trig functions for 30, 45 and 60 degrees. .
Converging mirror and lens with all possible locations for objects. These are very similar.
Gravity & electric side by side comparison of forces, field strength, potential energy and absolute potential. Also, orbits with their kinetic and potential energies are summarized here.