A photographic camera Simulation Play

A photographic camera Student activity Play

An image through a camera Animation Play

CCD (charge-coupled device) Student activity Play

Diffraction of sound waves Student activity Play

Diffraction of sound waves Whiteboard exercise Play

Digital signal and disturbances Student activity Play

Effects of noice Slideshow Play

Electricity from nuclear energy Student activity Play

Electricity from renewable energy sources Student activity Play

Hydroelectric power station Illustration Play

Noise Animation Play

Noise and protection against noise Student activity Play

Noise pollution Student activity Play

Noise pollution Whiteboard exercise Play

Optical instruments Whiteboard presentation Play

Optical instruments Class activity Play

Optical instruments Class activity Play

Pollution of the natural environment Slideshow Play

Pollution of the natural environment by humans Student activity Play

Protection against noise Slideshow Play

Reading a graph Student activity Play

Reading a graph Whiteboard exercise Play

Sound intensity Class activity Play

Sound intensity Whiteboard presentation Play