The frequency of the perceived wave Animation Play

The frequency of the wave perceived by the observer Animation Play

The history of the stage Slideshow Play

The instruments used for observation of the sky Slideshow Play

The intensity of a wave Class activity Play

The intensity of a wave Whiteboard presentation Play

The law of refraction Student activity Play

The Law of Wave Reflection Animation Play

The Law of Wave Reflection Student activity Play

The Law of Wave Reflection Whiteboard exercise 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 length of a laser Illustration Play

The magnitude of the resultant force Animation Play

The mass of particles Illustration Play

The measurement of wavelength Animation Play

The mechanism of hearing Student activity Play

The mechanism of hearing Whiteboard exercise Play

The mechanism of hearing Animation Play

The nature of seismic waves Whiteboard exercise Play

The nature of seismic waves Student activity Play

The nature of seismic waves Chart Play

The origin and registration of seismic waves Student activity Play

The origin and registration of seismic waves Whiteboard exercise Play