Sound intensity and distance Whiteboard exercise Play

Spontaneous and stimulated emission Student activity Play

The efficiency of a loudspeaker Animation Play

The intensity of a beam of photons Animation Play

The intensity of a wave Class activity Play

The intensity of a wave Whiteboard presentation Play

The intensity of light Animation Play

The mechanism of hearing Student activity Play

Two drums Animation Play

Waves of high intensity Whiteboard exercise Play

Work function Simulation Play

Work function Student activity Play

X-ray radiation Student activity Play

X-ray radiation Glossary Play