Higher Physics Electricity revision

Back to topic pages

Topic pages

Monitoring & measuring a.c. Peak and r.m.s. values, the oscilloscope, and measuring frequency. Current, p.d., power & resistance Charge and current, the series and parallel rules, power and potential dividers. Electrical sources & internal resistance E.m.f. and lost volts, and finding internal resistance from a graph. Capacitors Capacitance, the energy stored, and charging and discharging. Conductors, semiconductors & p–n junctions Band theory, doping, the p–n junction, LEDs and solar cells.

Lesson slides

Monitoring & measuring a.c.PDF · 60 slides Current, p.d., power & resistancePDF · 70 slides Electrical sources & internal resistancePDF · 68 slides CapacitorsPDF · 75 slides Conductors, semiconductors & p–n junctionsPDF · 80 slides Semiconductors — diagram printoutsPDF · 3 pages · cut and stick

Practice tests

Two 45-mark tests covering the whole unit, marked on the page. Sit one, fix what you lost, then sit the other — no question or answer is shared between them.

Electricity — Test A45 marks · ~60 min · self-marking Electricity — Test B45 marks · ~60 min · nothing shared with Test A

Self-check

The “I can” statements from each lesson. Tick the ones you could do in the test without your notes; anything left unticked is what to revise next. Ticks are saved on this device.

Sources & credits: practice-test questions are adapted from Higher Physics past papers, reproduced and adapted for educational use — past papers and marking instructions © Qualifications Scotland (SQA). Topic marks, lesson slides and practice tests © R Stewart Physics, Electronics and Engineering, 2026.