About This Lesson
Experiment with conductivity in metals, plastics and photoconductors. See why metals conduct and plastics don't, and why some materials conduct only when you shine a flashlight on them;
Sample Learning Goals
•Recognize that the battery is the driving force in a circuit.
•Explain the difference in conducting behavior between metals, plastics, and photoconductors in terms of the difference in the structure of energy levels.
•Explain why shining light on a photoconductor causes it to conduct.
Great little simulation worthy of downloading.