Two charged spheres hang from insulating threads that are fixed to the same point. The threads hang apart from each other instead of hanging straight down. What can be concluded?
The spheres carry different types of charge and are attracting
The spheres carry the same type of charge and are repelling
The spheres carry no charge, and the threads are simply bent
One sphere is charged and the other has lost all its charge
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.