AQA GCSE Physics Electrical Power P = I²R Lesson Pack | Presentation + Workbook | Higher Tier +Answers
AQA GCSE Physics electrical power P = I²R lesson pack. Teaching slides + workbook on resistor dissipation and national-grid transmission. AQA 4.2 H.
The complete teach-and-practise sequence for AQA GCSE Physics P = I²R, the Higher tier power equation that underpins national-grid transmission questions. The presentation derives the equation from P = IV and V = IR, then connects it to the conceptual question on Paper 2: why is electricity transmitted at high voltage? The workbook drills the rearranging until learners can recover P, I, or R from any given pair.
What's inside:
Resource 1 — Electrical Power (P=I²R) Teaching Presentation (PDF). P = I²R derivation and applications. National-grid transmission sequence with step-up and step-down transformers. Worked examples on power dissipated in transmission cables and resistors. Higher tier exam-style questions.
Resource 2 — Electrical Power (P=I²R) Calculations Workbook (PDF). 20 scaffolded P = I²R questions. Q1-Q6 direct substitution, Q7-Q14 rearranging (squaring and square-rooting in the right place), Q15-Q20 applied questions on power loss in transmission cables and resistor networks. Full worked answers using the EVERY method.
AQA specification reference: 4.2 Electricity, section 4.2.1 (current, p.d. and resistance) with the Higher tier power equation P = I²R. Links to 4.7.3 (transformers and the national grid for Triple Physics Higher). From AQA GCSE Physics 8463.
The EVERY method: Equation, Values, Enter, Rearrange, Your units. The I² step is where Higher tier learners typically lose marks (forgetting to square, or squaring after dividing). The method forces the squaring to appear explicitly in the working.
Who it's for: AQA GCSE Physics teachers, Higher tier intervention leads, GCSE tutors targeting Grade 7-9 progression, parents supporting Year 11 learners through final revision, and homeschool families on the UK national curriculum.
Pair with the matching P=V²/R presentation: GCSE Physics Electrical Power (P=V²/R) Visual Revision Guide — https://advisoryscience.com/b/gcse-physics-electrical-power-p-v2-r-calculations-presentation
Pair with the free video: AQA GCSE Physics Electricity Quiz (20 questions) — https://www.youtube.com/watch?v=OjYLXTcMde8
Read the blog post on Physics calculation struggles: https://advisoryscience.com/blog/the-physics-equations-calculations-practice-workbooks-series/why-gcse-students-struggle-with-physics-equations-and-what-actually-helps
Save with the bundle: GCSE Physics Lesson & Workbook Bundle — https://advisoryscience.com/b/gcse-physics-calculations-complete-lesson-bundle
Related Physics lesson packs: AQA GCSE Physics Ohm's Law Lesson + Workbook, AQA GCSE Physics Electrical Power (P=VI) Lesson + Workbook, AQA GCSE Physics Springs and Extension Lesson + Workbook.
Made by an award-winning science educator. Used by 150+ UK schools. Instant download, A4 PDFs, print-ready, full answers throughout.
Format: PDFs. © 2026 Advisory Science. Personal/classroom use only. Print copies and project slides for your own learners; not for sharing, reselling, or redistribution.
Tags (6): AQA GCSE Physics electrical power | P = I²R Higher tier | national grid transmission | Year 10 Year 11 revision | EVERY method scaffold | Triple Physics
