A teacher demonstrates charging by friction by rubbing a polythene rod with a woollen cloth. Both objects become charged.
Which row correctly identifies the electrical classification of these materials and the particles that move to cause them to become charged?
| Classification of the materials | Particles that move | |
|---|---|---|
| A | Electrical insulators | Positive ions |
| B | Electrical insulators | Electrons |
| C | Electrical conductors | Positive ions |
| D | Electrical conductors | Electrons |
Electrical insulators; Positive ions
Electrical insulators; Electrons
Electrical conductors; Positive ions
Electrical conductors; Electrons
15 exam-style questions on OCR GCSE Physics Static and charge. Each one has a worked solution and a mark scheme showing where the marks go.