Photoelectric Effect: An AAPT Lesson Set for High School Physics
This 3-part mini-unit is the keystone of our AAPT Photoelectric Effect Digi Kit. Students engage in three activities to build an understanding of photoemission and its importance as applied in technologies today. They will: 1)construct simple electroscopes to gather evidence for the energy needed to cause the photoelectric effect; 2) explore a PhET digital model to deepen understanding of factors that cause photoemission in different metals; and 3) evaluate both the wave and particle models of light to determine which best explains the photoelectric effect. The lessons explicitly address NGSS content standards relating to the photoelectric effect and provide comprehensive support for teaching about the phenomenon in a high school classroom. The topic is presented within the real-life context of photovoltaic cells in solar panels.
Reference Material: Hyperphysics - Work Functions for Photoelectric Effect
This free-access table, part of the Hyperphysics website, provides work function values (in eV) for 22 elements. Hyperphysics is under the continuing development of Rod Nave, Department of Physics and Astronomy, Georgia State University.