Echo Student activity Play

Echo and reverberation Animation Play

Echoes Animation Play

Echolocation Whiteboard exercise Play

Echolocation Student activity Play

Echolocation Animation Play

Echolocation in bats Whiteboard exercise Play

Electromagnetic waves Student activity Play

Energy and amplitude Student activity Play

Energy transfer Student activity Play

Energy transfers Whiteboard exercise Play

Energy, amplitude and loudness Animation Play

Examples of energy-wasting Slideshow Play

Examples of wasted energy Student activity Play

Features of receptors Slideshow Play

Fermat's Principle Whiteboard exercise Play

Fermat's Principle Student activity Play

Finding the value, given the percentage Student activity Play

Fuel consumption Animation Play

Guitar strings Animation Play

Harmonic oscillations Animation Play

Harmonic oscillations Whiteboard exercise Play

Harmonic oscillations Student activity Play

Hearing Whiteboard presentation Play

Hearing Class activity Play