You hit Question 4. It's a graph sketching question. The axes are labelled "ln(I)" vs "t". You have no idea what "I" stands for. Your pulse quickens. You skip it. Question 5 is about a diffraction grating, but the angles don't make sense. You realise you have spent 30 minutes and scored 12 marks. You close the paper and stare at the wall.
The textbook is a lie. A beautiful, necessary, but ultimately misleading lie. a level physics past papers
The student who memorised the phrase "resistance decreases" wrote a shallow answer. The student who actually understood the non-linear relationship—who knew that "inversely proportional" requires a constant product—wrote a critical, high-level evaluation. You hit Question 4
Past papers are the map. But the map is not the territory. You must walk the terrain of first principles . If you are facing a stack of ten years of papers, do not do them chronologically. That is the slow path to burnout. You have no idea what "I" stands for