A plastic rod is rubbed with a dry cloth. The rod becomes negatively charged.
Which statement explains why the rod becomes negatively charged?
Electrons moved from the rod onto the cloth
Protons moved from the cloth onto the rod
Protons moved from the rod onto the cloth
Electrons moved from the cloth onto the rod
43 exam-style questions on OCR GCSE Physics 3.1 Static and charge, covering 3.1.1 Positive and negative charge, 3.1.2 Static electricity and forces between charged objects, 3.1.3 Electron transfer and static electricity, 3.1.4 Electric fields, 3.1.5 Current as a flow of charge, 3.1.6 Current in a single closed loop, and 3.1.7 Charge, current and time. Each one has a worked solution and a mark scheme showing where the marks go.