Electric charge
Core concepts and learning points for this section:
Syllabus Points
Core
- 4.2.1.1 State that there are positive and negative charges
- 4.2.1.2 State that positive charges repel other positive charges, negative charges repel other negative charges, but positive charges attract negative charges
- 4.2.1.3 Describe simple experiments to show the production of electrostatic charges by friction and to show the detection of electrostatic charges
- 4.2.1.4 Explain that charging of solids by friction involves only a transfer of negative charge (electrons)
- 4.2.1.5 Describe an experiment to distinguish between electrical conductors and insulators
- 4.2.1.6 Recall and use a simple electron model to explain the difference between electrical conductors and insulators and give typical examples
Supplement
- 4.2.1.7 State that charge is measured in coulombs
- 4.2.1.8 Describe an electric field as a region in which an electric charge experiences a force
- 4.2.1.9 State that the direction of an electric field at a point is the direction of the force on a positive charge at that point
- 4.2.1.10 Describe simple electric field patterns, including the direction of the field: (a) around a point charge (b) around a charged conducting sphere (c) between two oppositely charged parallel conducting plates (end effects will not be examined)