O-LevelPhysicsElectricity5054/11 · May/June 2019 · Q311 Mark

The diagram shows some white plastic beads in a clear plastic box. The box is shaken and the beads rub against the box. The beads stick to the inside surface of the box. Which row is a possible explanation for this?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

ABox: gains electrons, Beads: no change of electrons

BBox: loses electrons, Beads: gain electrons

CBox: no change of electrons, Beads: lose electrons

DBox: no change of electrons, Beads: gain electrons

✓ Correct answer

B: Box: loses electrons, Beads: gain electrons

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Topic: Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2019 Paper 1 Variant 1, question 31.

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