Gallery
Discover apps people built on Collabby by chatting. Run them, then remix to make them yours.
Sound and Wavelength
Adjust wavelength and amplitude to hear how pitch, volume and timbre change, and how fast sound travels through different media.
by Anonymous
Reflection and Refraction
Move an object toward and away from a mirror, water surface, and convex lens to trace the rays and see where each image forms and how big it looks.
by Anonymous