CAIE IGCSE Physics 4.2.1.4 Charging of Solids By Friction Questions

Practise explaining frictional charging solely through electron transfer, relating the direction of electron movement to the final signs on both materials.

Exam points

State that only electrons transfer during rubbing while protons remain bound in the materials, infer that an object gaining electrons becomes negative and one losing electrons becomes positive, and track electrons between a rod and cloth to determine the equal and opposite final charge signs.

[Maximum number: 2]

A piece of plastic is charged positively by friction.

State what charge transfers occur during this process.

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CAIE IGCSE Physics 4.2.1.4 Charging of Solids By Friction Questions question 1