AQA · 7408 · Version 1.4, July 2026
A-level Physics
Which lectures teach each point of this specification, and where.
SpecificationAQAMost matches are in two options, Electronics (3.13) and Medical physics (3.10); a student takes one option. Sections 3.1 to 3.5 are AS content. Checked against the board's specification (Version 1.4, July 2026) on 28 October 2026. Each point is summarised in our words; its page number leads to the exact wording. This mapping is ours: no exam board has endorsed this site, and the lectures do not cover the whole specification.
| Spec point | What it asks for | Level | Taught in | Coverage |
|---|---|---|---|---|
| 3.13.2.1 (Electronics option) page 64 | sampling audio for digital transmission: sampling rate, quantisation, the pros and cons of digital sampling, recovering data from noise, PCM Lecture 1 covers sampling and PCM; quantisation is Lecture 2. | A-level only, option | Lecture 1 Why go digital? Sampling The PCM transmitter | partly covered |
| 3.3.1.1 page 18 | amplitude, frequency, wavelength, phase; f = 1/T | AS | Lecture 1 What a signal is | background |
| 3.13.2.1 (Electronics option) page 64 | quantisation; the effect of bits per sample on quality | A-level only, option | Lecture 2 (coming) | covered |
| 3.10.2.2 (Medical physics option) page 50 | equal-loudness curves; intensity level in decibels; dB and dBA | A-level only, option | Lecture 3 (coming) | covered |
| 3.7.5.5 page 40 | rms, peak and peak-to-peak values of sinusoids | A-level only | Lecture 3 (coming) | covered |
| 3.13.2.1, 3.13.4.3, 3.13.6.3 (Electronics option) page 64, 66, 68 | ADC and PCM; the summing amplifier; time-division multiplexing | A-level only, option | Lecture 4 (coming) | partly covered |
| 3.13.3.1 (Electronics option) page 65 | LC resonance filters, resonant frequency and Q | A-level only, option | Lecture 6 (coming) | covered |
| 3.13.4.1-3.13.4.4 (Electronics option) page 65-66 | op-amp amplifier configurations and the limits of real op-amps | A-level only, option | Lecture 9 (coming) | partly covered |