Cambridge IGCSE Physics practice

Paper 3 structured question: Electric charge

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Paper

Marks

Topic

Electric charge

Exam-style question

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Paper 3Theory (Core)1 marks

Charging by friction is a common phenomenon observed in everyday life.

Description

When two different materials are rubbed together, one material can become negatively charged while the other becomes positively charged.

a
State the charge of the material that gains electrons during the process.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)3 marks

Description

When two solids are rubbed together, electrons are transferred from one to the other, resulting in opposite charges on the two solids.

a
Explain how charging by friction occurs.
Your answer
Aim for approximately 3 distinct marking points.
[3]