A balloon is rubbed against a woolen jumper. This process causes both the balloon and the jumper to become charged. Which row in the table correctly describes the charges acquired by the balloon and the jumper, and the nature of the force between them?
| Charges acquired | Force between them | |
|---|---|---|
| A | the same | they attract |
| B | the same | they repel |
| C | opposite | they attract |
| D | opposite | they repel |
A
B
C
D
452 exam-style questions on CIE IGCSE Physics 4.2 Electrical quantities, covering 4.2.1a Positive and negative charge, 4.2.1b Charging by friction and detecting charge, 4.2.1c Electrical conductors and insulators, 4.2.1d Electric fields and electric field patterns, 4.2.2a Electric current, charge and measuring current, 4.2.2b Conduction in metals and the direction of current, 4.2.2c Direct current and alternating current, 4.2.3a Electromotive force, 4.2.3b Potential difference and voltmeters, 4.2.4a Resistance, 4.2.4b Resistance of a metallic wire, 4.2.4c Current–voltage graphs, and 4.2.5 Electrical energy and electrical power. Each one has a worked solution and a mark scheme showing where the marks go.