Two insulating blocks are rubbed together. Block P is left with 5 units of negative charge. Which statement about the two blocks is correct?
Block Q has 5 units of positive charge, so the total charge is unchanged
Block Q has 5 units of negative charge, so the total charge is doubled
Block Q has no charge at all, so the total charge has been increased
Block Q has 10 units of positive charge, so the charges are balanced
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.