O-LevelPhysicsThermal PhysicsOct/Nov 2025Paper 2 Q48 Marks
A large test-tube contains a thermometer and some solid wax at a temperature of 21 °C. At time t = 0, the test-tube is partially immersed in a beaker of boiling water and the temperature of the wax is recorded for the next 600 s. Fig. 4.1 shows the variation of the temperature of the wax with time t. [Figure 4.1]
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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