Physics 0625 · IGCSE · Electrical quantities

Electrical quantities — practice question

A plastic rod gains a negative charge after being rubbed with a woollen cloth.
(a)[2]

Describe, in terms of particles, how rubbing the cloth makes the rod negatively charged.

(b(i))[3]

Explain why the ball jumps up.

(b(ii))[2]

The ball touches the rod and then falls back to the table. Explain why this happens.

Worked solution & mark scheme

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