Below you will find answer keys to the worksheet at the end of each lesson. Simply click the title (e.g. Lesson 33) to download a PDF version of the answer key.
Introduction to One-Dimensional Waves
Reflection in One-Dimension
Standing Waves in One-Dimension
Resonant Frequencies
Reflection in Two-Dimensions
Refraction in Two-Dimensions
Diffraction
Interference in Two-Dimensions