Students will know that electrons carry energy and momentum when they are moving. Yet these moving electrons seem to be guided...

Teaching Guidance 14-16

A common approach to introducing the idea that light shifts energy in discrete chunks or photons is to state that light not...

Teaching Guidance 14-16

Waves are all around us and an essential part of our everyday life. These series of videos provide useful ideas and practical...

CPD 11-14 14-16 16-19

It is often reported that Robert Millikan’s 1915 photoelectric experiment verified Einstein’s hypothesis about light quanta...

Stories from Physics 11-14 14-16 16-19

Millikan’s experiment did not lead to the rapid acceptance of Einstein’s ideas. His light quantum model was widely treated...

Stories from Physics 11-14 14-16 16-19