Supersonic flights Whiteboard exercise Play

Supersonic flights Student activity Play

Television Student activity Play

Television Slideshow Play

The amplitude and the frequency of sound Whiteboard exercise Play

The amplitude and the frequency of sound Student activity Play

The amplitude and the frequency of sound Simulation Play

The angle of incidence and the angle of refraction Animation Play

The Doppler effect in the animal world Student activity Play

The efficiency of a loudspeaker Animation Play

The frequency of beats Whiteboard exercise Play

The frequency of beats Animation Play

The frequency of beats Student activity Play

The frequency of beats Simulation Play

The history of the stage Slideshow Play

The law of refraction Student activity Play

The Law of Wave Reflection Whiteboard exercise Play

The Law of Wave Reflection Student activity Play

The Law of Wave Reflection Animation Play

The Law of Wave Refraction Animation Play

The Law of Wave Refraction Whiteboard exercise Play

The Law of Wave Refraction Student activity Play

The origin and registration of seismic waves Whiteboard exercise Play

The origin and registration of seismic waves Student activity Play

The origins of seismic waves Slideshow Play