identify common materials which are electrical conductors or insulators, including metals and plastics
identify common materials which are electrical conductors or insulators, including metals and plastics
practical: investigate how insulating materials can be charged by friction
explain how positive and negative electrostatic charges are produced on materials by the loss and gain of electrons
know that there are forces of attraction between unlike charges and forces of repulsion between like charges
explain electrostatic phenomena in terms of the movement of electrons
explain the potential dangers of electrostatic charges, e.g. when fuelling aircraft and tankers
explain some uses of electrostatic charges, e.g. in photocopiers and inkjet printers