PHET Interactive Simulations: Conductivity
Topics
Conductivity
Energy Levels
Photoconductors
Description
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
Identify 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.