A-LevelPhysicsGravitational fieldsFeb/Mar 2020Paper 4 Q110 Marks
Answer all the questions in the spaces provided. (a) Define gravitational potential at a point. (b) TESS is a satellite of mass 360kg in a circular orbit about the Earth as shown in Fig. 1.1. [Figure 1.1] The radius of the Earth is 6.4 × 10⁶m and the mass of the Earth, considered to be a point mass at its centre, is 6.0 × 10²⁴ kg.
📋 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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