What you’ll learn10 learning objectivesChoose one objective for a focused lesson, or study the complete topic.4.2.1.1There are positive and negative• State: there are positive and negative chargesSyllabus objective4.2.1.2Positive charges repel other positive• State: positive charges repel other positive charges, negative charges repel other negative charges, but positive charges attract negative chargesSyllabus objective4.2.1.3Simple experiments to show the• Describe simple experiments to show the production of electrostatic charges by friction and to show the detection of electrostatic chargesSyllabus objective4.2.1.4Charging of solids by friction• Explain that charging of solids by friction involves only a transfer of negative charge (electrons)Syllabus objective4.2.1.5An experiment to distinguish between• Describe an experiment to distinguish between electrical conductors and insulatorsSyllabus objective4.2.1.6A simple electron model to explain the• Recall/use a simple electron model to explain the difference between electrical conductors and insulators and give typical examplesSyllabus objective4.2.1.7Charge is measured in coulombs• State: charge is measured in coulombsSyllabus objective4.2.1.8An electric field as a region in which• Describe an electric field as a region in which an electric charge experiences a forceSyllabus objective4.2.1.9Direction of an electric field at a• State: the direction of an electric field at a point is the direction of the force on a positive charge at that pointSyllabus objective4.2.1.10Simple electric field patterns• 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)Syllabus objective