Questions candidates found difficult on H3 Physics 9814 (Nov 2023) — the pendulum restoring force, friction direction on inclines, and dipole rotation.
Oscillations — the restoring force is the tangential component of weight, not tension
Paper 1 Q3 — Which way does friction point?Statics on an incline — friction direction and drawing forces to scale
Paper 1 Q2 — Dipole rotation and centre of massDipole in a field — alignment for maximum rotational KE; centre of mass position
Original reconstructions inspired by the SEAB/Cambridge Examiner Report. Not actual examination questions.
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