A 'day' longer than a 'year' Whiteboard exercise Play

A 'day' longer than a 'year' Student activity Play

A disc and a weight Animation Play

A line going through two points Animation Play

A line in 3-D going through two points Simulation Play

A line passing through two points Simulation Play

A mobile source and a stationary observer Student activity Play

A pendulum Simulation Play

A pendulum Whiteboard exercise Play

A pendulum Student activity Play

A physical pendulum Student activity Play

A physical pendulum Slideshow Play

A physical pendulum Whiteboard exercise Play

A standing wave Student activity Play

A standing wave Animation Play

A standing wave Whiteboard exercise Play

A triangle cut into two right-angled triangles Whiteboard exercise Play

Absorption of light by transition metal ions Animation Play

Activities Student activity Play

Alcohols with two or more hydroxyl groups Animation Play

Alcohols with two or more hydroxyl groups Student activity Play

Alcohols with two or more hydroxyl groups Whiteboard exercise Play

Altering the  y-scale and the  x-scale Student activity Play

Alternating current Slideshow Play

Alternating current Student activity Play