Physics Paper 1
Contamination and irradiation
Atomic Structure training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Contamination and irradiation is like tracking a system with arrows and numbers: decide what changes, what stays conserved, and what equation describes it.
Why now: An analogy helps when the definition feels abstract.
Do this: Match each part of the analogy to the science idea.
Learn it
Contamination and irradiation sits inside Atomic Structure, so learn the core definition and the exam example that usually comes with it.
Focus on the model, equation, graph or force/energy transfer that explains the change when revising contamination and irradiation.
For a longer answer, write the equation or model first, then use units, graph clues or direction carefully.