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, covering 11.1.1 Charging insulators by friction, 11.1.2 Forces between charges, 11.1.3 Electrostatic phenomena, and 11.1.4 Earthing and removing charge. Each one has a worked solution and a mark scheme showing where the marks go.