Ratio of two quantities of different kinds Student activity Play

Reading a velocity–time graph Whiteboard exercise Play

Reading speed from the graph Student activity Play

Reading speed from the graph Simulation Play

Reading the graph Student activity Play

Recoil Student activity Play

Recoil Simulation Play

Recoil Whiteboard exercise Play

Rectilinear motion and circular motion Animation Play

Reflection of a wave Student activity Play

Reflection of a wave Animation Play

Reflection of a wave Whiteboard exercise Play

Relationship between air resistance and speed Student activity Play

Relationship between air resistance and speed Whiteboard exercise Play

Relative velocity vectors Whiteboard exercise Play

Relative velocity vectors Student activity Play

Relativistic momentum Student activity Play

Relativistic momentum Whiteboard exercise Play

Relativity of motion Whiteboard exercise Play

Relativity of motion Student activity Play

Resultant velocity Simulation Play

Resultant velocity Student activity Play

Roemer's proof Whiteboard exercise Play

Roemer's proof Student activity Play

Rolling and rotations Student activity Play