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...

Seven practice problems are presented to physics pros in this assignment. Given the wavelengths, they perform computations for emission spectra. This brief worksheet makes an appropriate pop quiz.

In this online interactive physical science crossword puzzle instructional activity, students use the 9 clues regarding motion and design to find the appropriate answers to complete the word puzzle.

This essay from the NOVA Web site explores the impact Einstein made on physics and most everything we know about the cosmos.

Biography of Albert Einstein from an exhibit at Princeton University.