Building the particle model
Building the particle model

The quark-lepton model sorts matter particles into fundamental particles and hadrons. Quarks and leptons are fundamental, while hadrons are made from quarks.
Step-by-step lessons covering Edexcel A Level Physics Quark-lepton model and particle interactions for A Level Physics. Each lesson works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks across the three papers require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.