The properties of γ radiation Student activity Play

The quantities that characterise a wave Animation Play

The range of radiation Chart Play

The range of the visible light spectrum Whiteboard exercise Play

The ranges of electromagnetic waves Whiteboard presentation Play

The ranges of electromagnetic waves Animation Play

The ranges of electromagnetic waves Class activity Play

The reaction Whiteboard exercise Play

The reflection of sound waves Animation Play

The reflection of sound waves Student activity Play

The resultant force Animation Play

The resultant force Whiteboard exercise Play

The resultant force Student activity Play

The second derivative of an arbitrary rational power of  x Whiteboard exercise Play

The second division of the cells Animation Play

The Second Law of Thermodynamics Animation Play

The Second Law of Thermodynamics Class activity Play

The Second Law of Thermodynamics Whiteboard presentation Play

The Second Law of Thermodynamics for heat engines Simulation Play

The Second Law of Thermodynamics for heat engines Student activity Play

The Second Law of Thermodynamics for heat engines Whiteboard exercise Play

The second power Animation Play

The second tangent theorem Animation Play

The second tangent theorem – equality in length Whiteboard exercise Play

The second tangent theorem – equality in length Student activity Play