This demonstration will help students understand what is required for an image to be formed by a lens. As well, it will help to diagnose possible misconceptions about image formation.
In this demo, two polyethylene strips are charged on one end by rubbing with wool. One charged strip is then mounted on an evaporating dish and the other charged strip is used to make the dish spin.... read more
Categories: Teacher Demonstration
Primary industry has been important to the Canadian economy for hundreds of years. In particular, the vast forests in British Columbia and Ontario provide the raw materials for a billion-dollar... read more