Sound + sound = silence Animation Play

Sound + sound = silence Whiteboard exercise Play

Sound + sound = silence Student activity Play

Sound amplification Student activity Play

Sound amplification Whiteboard exercise Play

Sound and energy Illustration Play

Sound box Slideshow Play

Sound intensity Student activity Play

Sound intensity Whiteboard exercise Play

Sound intensity and distance Student activity Play

Sound intensity and distance Simulation Play

Sound intensity and distance Whiteboard exercise Play

Sound waves Whiteboard exercise Play

Sound waves Student activity Play

Sources of plane waves Student activity Play

Spectral analysis Student activity Play

Spectroscopy and electromagnetic radiation Student activity Play

Spectrum of electromagnetic radiation Illustration Play

Spectrum of electromagnetic waves Student activity Play

Speed of sound Slideshow Play

Spherical waves Student activity Play

Stationary source of sound Animation Play

Stationary source of sound, mobile listener Simulation Play

Stationary source of sound, mobile listener Student activity Play

Stationary wave in a string Simulation Play