OCR AS A2 Unit 2 Electrons, waves and photons

This section contains suggestions for material from the schoolphysics website that could be used with the OCR Physics A AS A2 Specification (first examinations 2009 and 2010).

OCR 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)

For the full version of the specification please see:
OCR Physics A AS H158 and A2 H558


This section of the site is still under development. Please return in a day or so.

2.1.1 Charge and current
Electric charge and current
Ammeter and voltmeter
Free electron motion
Semiconductors

2.2.1 Circuit symbols
Electrical symbols (14-16)

2.2.2 E.m.f. and p.d.
Potential and potential difference
EMF and internal resistance
Volts, amps and joules (14-16)

2.2.3 Resistance
Resistance
Variation of current with applied voltage
Tungsten filament lamp
Resistance (14-16)
Ohm's Law (14-16)
Light emitting diode

2.2.4 Resisitivity
Resistivity
Resistance, resistivity and temperature
Thermistor and temperature

14-16/Electricity and magnetism/Current electricity/Experiments/Thermistor resistance

2.2.5 Power
Electrical power
Paying for electricity (14-16)
Fuses and circuit breakers (11-14)
Fuses, plugs and switches

This section of the site is still under development. Please return in a day or so.