A-LevelPhysicsWavesMay/June 2019Paper 1 Q241 Mark
A wave moves along the surface of water. The diagram shows the variation of displacement s with distance along the wave at time t = 0. [Figure 24.1] Which graph best shows the variation with time t of the displacement s of the point P on the wave?
A[Diagram A showing s versus t as a sine wave starting at s=0 and initially increasing]
B[Diagram B showing s versus t as a sine wave starting at s=0 and initially decreasing]
C[Diagram C showing s versus t as a sine wave starting at a positive maximum]
D[Diagram D showing s versus t as a sine wave starting at a negative maximum]
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of waves within the Physicssyllabus. The examiner's mark scheme requires...
📋 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...
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