The use of smartphones in experimental physics is by now widely accepted and documented. PASCO scientific's Smart Cart, in combination with student-owned smartphones and free apps, has opened a new universe of low-cost experiments that have traditionally required cumbersome and expensive equipment. In this paper, we demonstrate the simplicity,…

Experiments are designed with application to phenomena of the real world for use in a third-quarter introductory college physics course in wave motion, sound, and light. The computer is used to process and analyze experimental data and to extend experimental observations through simulation. (Author/TS)

Suggests a method treating geometric optics using a microcomputer to do the calculations of image formation. Calculations are based on the connection between the composition of lenses and the mathematics of fractional linear equations. Logic of the analysis and an example problem are included. (JM)