This question is about electrostatic phenomena.
A laboratory technician is preparing a demonstration on electrostatic forces. She suspends a clean polythene rod horizontally from a non-conducting stand.
Describe a method the technician could use to give the polythene rod a net negative electrostatic charge, and explain the atomic-level process that causes this charge to develop.
47 exam-style questions on Edexcel GCSE Physics 11.1 Charging by friction. Each one has a worked solution and a mark scheme showing where the marks go.