This spreadsheet can be used to generate questions where students are given two or more vectors and asked to find what the resultant vector is. They can do this graphically and algebraically. All of my drills are fully Excel compatible spreadsheets. This one is a question generator, which can be used to generate an unlimited number of unique questions. Just press F9 (PC) or Cmd+= (Mac) to refresh the spreadsheet and generate a new question.

This simulator shows students what conditions are necessary for stationary waves to form. Various quantities can be adjusted to see whether stationary waves form or not. All of my drills are fully Excel compatible spreadsheets. This one is a simulation, which can be used to investigate the conditions for stationary waves to form.

This spreadsheet generates worksheets where students are shown rays and given refractive indices, then are asked what happens to the ray next (either refraction or total internal reflection). All of my drills are fully Excel compatible spreadsheets. This one is a worksheet generator, which can be used to generate an unlimited number of unique questions. Just press F9 (PC) or Cmd+= (Mac) to refresh the spreadsheet and generate a new question.