Focal point of a concave mirror Student activity Play

Focusing of rays Student activity Play

Fresnel lens Animation Play

Friction Student activity Play

Friction and acceleration Whiteboard exercise Play

Friction and acceleration Student activity Play

Friction and acceleration Whiteboard exercise Play

Friction in a bike Whiteboard exercise Play

Heterogeneous catalysis Student activity Play

Heterogeneous catalyst Animation Play

How to calculate a change in potential energy near the surface of the Earth Whiteboard exercise Play

How to calculate a change in potential energy near the surface of the Earth Student activity Play

Huygens' Principle Student activity Play

Huygens' principle Animation Play

Images formed by a diverging lenses Student activity Play

Images formed by diverging lenses Animation Play

Images formed by diverging lenses Whiteboard exercise Play

Images in convex mirrors Student activity Play

Images in convex mirrors Whiteboard exercise Play

Images in lenses Student activity Play

Iridium satellites Animation Play

Light and the electromagnetic spectrum Student activity Play

Liquids Class activity Play

Liquids Whiteboard presentation Play

Luminosity – temperature diagram Illustration Play