Session Date
Lesson Topic
Quaantum theory
Lesson Outline
The dual theory of light, acting as a particle and/or as a wave, was presented with arguments from both sides. Einstein's theory of light particles being bundles of concentrated energy was presented. He based it on Plank's theory that atoms emit light energy, not as a continous stream but as chuncks of energy called quantum. Each quantum is composed of a photon of energy. The total energy is its kinetic energy, which is proportional to the frequency of the electromagnetic wave. The higher the frequency, the greater the kinetic energy. Einstein explained the photoelectric effect by showing that only high energy EM waves would "kick" electrons off a metal sheet and create an electric current. Only the frequency affected the effect, not the intensity.
Session Minutes
60
Minutes Student Attended
60
Lesson Comments
All conceptual learning, the energy of the photons and frequencies was not needed. Since Bobby never had a chemistry course, the light energy given off by electrons dropping into lower energy levels had to first be presented briefly. I think he comprehended it well.
Session Hours
1.00
Hours Attended
1.00
Entry Status
Review Status
Student Name(s)
Subject
School