Potential energy in an electric field Student activity Play

Potential energy in an electric field Simulation Play

Potential energy in an electric field Whiteboard exercise Play

Potential energy of a gravitational field Animation Play

Potential versus strength of an electric field Whiteboard exercise Play

Potential versus strength of an electric field Simulation Play

Potential versus strength of an electric field Student activity Play

Problems involving properties of angles and parallel lines Class activity Play

Problems involving properties of angles and parallel lines Whiteboard presentation Play

Proportions in crossing lines cut by two parallel lines Whiteboard exercise Play

Proportions in crossing lines cut by two parallel lines Student activity Play

Radiation Animation Play

Radio Animation Play

Radioactivity Student activity Play

Reflection symmetry in the coordinate system in the lines x = a and y = b Student activity Play

Reflection symmetry in the vertical and horizontal lines Whiteboard exercise Play

Relationship between electromagnetic force and the position of the conductor Student activity Play

Relationship between the electromagnetic force and the length of a conductor Whiteboard exercise Play

Relationship between the electromagnetic force and the length of a conductor Slideshow Play

Relationship between the electromagnetic force and the length of a conductor Student activity Play

Relative abundance of isotopes and mass spectra Student activity Play

Right hand rule Animation Play

Roentgen's experiment Animation Play

Rotation versus the position of equilibrium Slideshow Play

Rotation versus the position of equilibrium Whiteboard exercise Play