Feynman Diagrams A-level AQA Physics

Complete AQA A-level Physics lesson on exchange particles and Feynman diagrams. 21 editable slides, a 40-mark worksheet and a full mark scheme.

What’s in the PowerPoint

A starter recapping beta decay and antiparticles, with answers in the speaker notes
The four fundamental interactions and what each one acts on
How exchange particles cause forces, using the ball and boomerang analogy, plus virtual particles
A summary table of exchange particles, ranges and relative strengths
Why a heavier exchange particle gives a shorter range
Rules for drawing Feynman diagrams
Fully labelled diagrams for:
electromagnetic repulsion
beta-minus decay
beta-plus decay
electron capture
electron–proton collisions
neutrino interactions
How to check charge at each point in a diagram
A common mistakes slide
Six check questions with answers, and an exit ticket
Teacher notes in the speaker notes throughout

What’s in the worksheet (40 marks)

Section A: an interactions table and recall questions
Section B: naming the particles on unlabelled Feynman diagrams
Section C: drawing Feynman diagrams in blank boxes
Section D: exam-style questions on virtual photons, neutrino interactions and electron capture
A full mark scheme with mark points, on separate pages

Good for
First teaching, revision lessons, homework, cover lessons or independent study. Both files are fully editable in PowerPoint and Word.