IGCSE Physics topic guides

One page per topic: the ideas it tests, the mistakes that cost marks, and an exam-style question worked through step by step.

Topics

• Reading a linear scale (ruler, cylinder, thermometer)Using measuring instruments
• Agreement within experimental accuracyAnalysis and evaluation
• Refraction and refractive indexLight
• Reading an analogue meter (ammeter, voltmeter)Using measuring instruments
• Calculating quantities from readingsRecording and processing data
• Specific techniques (ray-tracing, balancing, timing)Practical techniques
• Speed-time graphsMotion
• Precautions and improvementsAnalysis and evaluation