IGCSE Physics: Energy in Circuits - E = QV | Edexcel Modular | Unit 2 | L8

IGCSE Physics: Energy in Circuits - E = QV | Edexcel Modular | Unit 2 | L8

This lesson covers spec points 2.20 and 2.21 — understanding that one volt is
one joule per coulomb, and knowing and using E = QV to calculate energy,
charge and voltage.

PowerPoint includes:
• Retrieval starter reviewing Q = It and parallel voltage from L7
• Direct Instruction (I Do) — the volt defined as J/C; E = QV introduced in
words and symbols; all three rearrangements shown; worked examples
calculating energy, charge and voltage; link to conservation of energy in
series circuits
• Guided Practice (We Do) — three calculations: find energy; find charge;
find voltage; chain problem combining Q = It with E = QV
• Independent Practice (You Do) — E = QV calculations; chain problems;
explain the volt as J/C in context
• Review and Reflect — 3 MCQs and exit ticket

Activity Sheet includes:
• Formula box: E = QV
• 10 exam-style questions covering all three rearrangements, chain problems
(Q = It then E = QV), and explain responses using the J/C definition
• Stretch question: phone charger — find total charge, charging time and
compare slow vs fast charger
• Full mark scheme for teacher use