A student rubs a polythene rod with a dry woollen cloth. Electrons move from the cloth on to the polythene rod.
Give the type of charge on the polythene rod after it has been rubbed.
Give the type of charge on the woollen cloth after it has been rubbed.
The student rubs a second polythene rod with the same cloth, then holds the two rods close together. The rods do not touch.
Describe what happens to the two rods.
Give the type of force that acts between the two rods.
40 exam-style questions on AQA GCSE Physics 2.5 Static electricity, covering 2.5.1 Static charge and 2.5.2 Electric fields. Each one has a worked solution and a mark scheme showing where the marks go.