This is a stellar overview of everything light and quantum! There are 30 multiple choice questions, none of them requiring any mathematical computation. There are a few diagrams to analyze: light rays striking reflective and refractive...

Illuminated physics stars show what they know about light by taking this exam. They match several related vocabulary terms to descriptions and answer multiple choice questions about the characteristics of light, magnification, and...

A physics tutorial on designing an auditorium and solving the problem of sound reflection. Illustrated.

This site looks at measures of central tendency and dispersion. Discussed are topics such as standard deviation, mean, median, and mode.