Sources of plane waves Student activity Play

Speed of light in transparent materials Illustration Play

Spherical mirror Animation Play

Spherical mirrors Student activity Play

Spherical mirrors Whiteboard exercise Play

Statements about periscopes Whiteboard exercise Play

Stationary waves Student activity Play

Stationary waves Animation Play

Stefan-Boltzmann Law Simulation Play

Stefan–Boltzmann Law Student activity Play

Stellar radiation Student activity Play

Stellar radiation Whiteboard exercise Play

Sunglasses with a polariser Animation Play

Symmetric figures Whiteboard exercise Play

Symmetrical graphs Animation Play

Symmetries with respect to two perpendicular lines Student activity Play

Symmetry Whiteboard presentation Play

Symmetry Class activity Play

The absorption of radiation by matter Animation Play

The angle of incidence and the angle of refraction Animation Play

The colours of paints Whiteboard exercise Play

The Doppler effect in the animal world Student activity Play

The energy levels of hydrogen atom Student activity Play

The figure and its symmetry Whiteboard exercise Play

The functions  y = x 2  and  y = –x 2 Student activity Play