Quantisation

Students may think that they have no direct experience of quantum physics and its consequences. Nothing could be further from...

Teaching Guidance 16-19

In this activity you can introduce students to the idea that energy can be shifted in small chunks. This is particularly...

Classroom Activity 14-16

Linking activity in the laboratory with a photon description.

Classroom Activity 14-16

This activity is all about hearing photons arrive, one by one. Draw out the random nature of their arrival, and the fact that...

Classroom Activity 14-16

This is a rather fine review activity, and should be undertaken towards the end of an introduction to the idea of photons.

Classroom Activity 14-16

Diagnostic questions exploring the understanding of lighting as a stream of photons.

Diagnostic Questions 14-16

Devices for lighting a room switch power to a particular pathway: the heating by radiation pathway. If the source emits at...

Physics Narrative 14-16

In lighting, energy arrives tiny shot by tiny shot. Typically the pathway fills a thermal store. Energy can be modelled by an...

Physics Narrative 14-16

There is a perplexing thing about photons that follows directly from these same photons being something used to model lighting...

Physics Narrative 14-16

The frequency of the light associated with each photon sets the energy shifted by each photon.

Physics Narrative 14-16

The frequency of a visible photon is measured in terahertz ( 400–700 terahertz ). The energy of such photons is measured in...

Physics Narrative 14-16

Photons are all-or-nothing entities: you cannot emit or absorb half a photon. (Remember that to detect a photon you have to...

Physics Narrative 14-16