WJEC AS A2 Physics 2009 and 2010

This section of the website contains suggestions for material that could be used with the WJEC Physics AS and A2 Specification (2009 and 2010).

WJEC is not affiliated with the author of the site and has had no involvement with the content of this website.

The website does not necessarily cover all topics or to the correct depth required for this specification although some sections may cover topics in more detail than is needed. It is the responsibility of the individual teacher to select the appropriate material.

References to work from the GCSE section of the site that would be useful atAS/A2 level are shown as (14-16) or (11- 14)

I am grateful to WJEC for permission to reproduce adapted versions of text from their Physics GCE Specification on this site. For the full version of the specification please see: WJEC AS and A2 Physics 2009/2010

2.3 Photons

(a) Photo electric effect demonstration
Photoelectric effect
Planck's constant

(b) Kinetic energy of photoelectrons
Einstein's equation
Planck's constant

16-19/Quantum physics/Experiments/Photoelectric effect

(c) Photoelectron kinetic energy graph
Planck's constant

(d) Einstein's photoelectric equation
Einstein's equation

16-19/Quantum physics/Problems/Photoelectric effect
16- 19/Quantum physics/Problems/Photoelectric effect 2

(e) X rays
X rays
X ray wavelengths
X ray spectra

16-19/Atomic physics/X rays/Problems/X rays

(f) Electromagnetic spectrum
Electromagnetic radiation
Electromagnetic radiation (14-16)
Electromagnetic spectrum

(g) Photon energy calculations
Quantum theory of radiation

(h) Line emission and line absorption spectra
Spectra and atomic structure

(i) Line spectra
Spectra and atomic structure

(j) Atomic energy level diagrams
Energy levels in hydrogen

(k) Ionisation energy
Spectra and atomic structure
Ionisation

16-19/Atomic physics/Atomic structure and ions/Problems/Energy levels and transitions

(l) Stimulated emission and coherent light
Lasers

(m) Population inversion and the laser
Lasers

(n) Population inversion in a two energy system
Lasers

(o) Population inversion in a three energy system
Lasers

(p) Pumping in a laser
Lasers

(q) Structure of a laser
Lasers

(r) Structure of a semiconductor laser

(s) Efficiencies of a 'normal' laser and a semiconductor laser

(t) Advantages of a semiconductor laser
Lasers

Material for the semiconductor laser is still being developed. Other topics will be expanded.


Further text, problems and experiments will be added later.