Edexcel AS A2 Unit 2 Physics at work
This section contains suggestions
for material from the schoolphysics website that could be used with the Edexcel Physics A AS A2
Specification (first examinations 2009 and 2010).
Edexcel 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 at GCSE level that might be useful at
AS level are shown as (14-16) or (11-14)
I am grateful to Edexcel for permission to
reproduce adapted versions of text from their Physics Specification on this site.
For
the full version of the specification please see:
Edexcel AS A2 2009 2100This section of the schoolphysics site is
still under development. Please return in a day or so.
2.3 Waves
28.
Wave propertiesWave
motionWaves (11-14)
29.
Electromagnetic spectrumElectromagnetic
spectrum (14-16)
Electromagnetic radiation
(14-16)Infra red radiation (14-16)Ultra violet and the ozone layer (14-16)Microwaves (14-16)
30. Equation for a wave Velocity = frequencyxwavelength (11-14)Wave speed
proof
31. Sound wavesSound wavesSound waves (11-14)
32. Wave
graphsWaves (11-14)
33.
Coherence, wave front, superposition, path and phase differenceCoherenceRefraction – wave
fronts
34. Relation between path difference and phase
differenceInterference
35. Standing wavesStanding
wavesStanding waves in tubesStanding waves on strings
36.
Refractive index and total internal reflectionRefraction and refractive indexTotal internal
reflection
37. Measurement of refractive indexRefractive index measurement
38. Accurate determinations of refractive
indexRefractive index measurement
39. Plane polarised
lightPolarisation
40. Measurement of the rotation of the plane of polarisationRotation of the plane of
polarisation16-19/Wave properties/Polarisation/Experiments/Malus'
Law
41. DiffractionDiffraction
Diffraction (14-16)
42.
Diffraction of electronsElectron
diffraction
43. Particle/wave nature of electronsParticle/wave nature of
electrons
44. Transmission and reflection of wavesReflection – wave
fronts
45. Waves moving from one medium to anotherRefraction – wave
fronts
46. Pulse echo techniqueMaterial for this section to be
written
47. Doppler effectDoppler
effectDoppler broadening of spectral lines
48. Scanning
detailMaterial for this section to be written
49. Social and ethical
issuesMaterial for this section to be written
2.4 DC
Electricity
50. Current as a rate of flow of chargeElectric charge and currentFree electron motionCharge flow
51. Expression V = W/QPotential and potential differenceVolts, amps and joules
52. Current voltage relationshipsCurrent-voltage relationships
53. Electrical
powerElectrical power14-16/Electricity and magnetism/Current
electricity/Experiments/Power of a lamp and a small motor
54. Resistance and
Ohm's LawOhm's Law
Ohm's Law (14-16)
14-16/Electricity and magnetism/Current
electricity/Experiments/Ohm's law
55. Current-potential difference graphs ICT
methodsMaterial for this section to be written
56. Current-potential
difference graphs for filament lamp, diode and thermistorCurrent-voltage relationships
57.
ResistivityResistivity
16-19/Electricity and magnetism/Current electricity/Problems/Resistance and resistivity
58. Potential dividerPotential divider16-19/Electricity and magnetism/Current
electricity/Experiments/Wheatstone bridge
59. EMF and internal
resistanceEMF and internal resistance16-19/Electricity and
magnetism/Current electricity/Problems/EMF and internal resistance
16-19/Electricity
and magnetism/Current electricity/Experiments/Internal resistance of cells
60.
Thermistors and the change in resistance with temperatureResistance and temperatureThermistor16-
19/Electricity and magnetism/Current electricity/Experiments/Temperature coefficient of
resistance
16-19/Electricity and magnetism/Current electricity/Experiments/Ohm's law
and lamps
14-16/Electricity and magnetism/Current electricity/Experiments/Thermistor
resistance
61. Current as a flow of charge (I=nave)I = nave
16-19/Electricity and magnetism/Current electricity/Problems/Flow of electrical charge
16-19/Electricity and magnetism/Current
electricity/Experiments/Flow of electrical charge
62. Resistance changes and
lattice vibrations
Resistance and temperature
2.5 Nature of light
63. Waves and
photonsTheories of
the nature of light
64. Photoelectron emissionPhotoelectric
effect
16-19/Quantum physics/Experiments/Photoelectric effect
16-19/Quantum physics/Problems/Photoelectric effect
16-19/Quantum physics/Problems/Photoelectric effect 2
65. Threshold frequency and the work functionThreshold frequency and the work function
16-19/Quantum physics/Problems/Photoelectric effect
16-19/Quantum physics/Problems/Photoelectric effect 2
66. The electronvoltElectronvolt
16-19/Quantum theory/Problems/Electrons and the quantum theory
67. E = hf and transition energyPhotoelectric
effect
16-19/Quantum physics/Problems/Photoelectric effect
16-19/Quantum physics/Problems/Photoelectric effect 2
68. Atomic spectra and electron transitionsSpectra and atomic structureEnergy levels in hydrogen
16-19/Atomic physics/Atomic structure and ions/Problems/Energy levels and transitions
69. Radiation fluxMaterial
for this section to be written
70. EfficiencyEfficiency (14-16)
71. Photon models and the nature of lightHistory of the theories
of the nature of lightTheories of
the nature of light
16-19/Wave properties/Wave properties/Problems/Theories of light
72. Science in society - solar cells and remote
sensingMaterial for this section to be written
Reference to further text,
problems and experiments will be added in the future. Lesson plans and over 700 Creative
Teaching Ideas may be found on the schoolphysics CD.
