Homework:
- Activity 11A, p.188-189 Waves & Photons
- Activity 11B, p.192 Photoelectric Effect
- Exercise 5B, p.205-208 Photoelectric Effect
- Ex 5C, p.212-215 Photoelectric Effect
- Act 11C, p.183 Atomic Line Spectra
- Act 11D, p.188-189 Bohr Model of Hydrogen Atom
- Ex 5D, p.221-222 Atomic Models
- Ex 5E, p.228-230 Atomic Line Spectra
Photoelectric Effect
Photoelectric Effect A-Level Physics
Hertz and Lenards Observation of Photoelectric Effect
Photoelectric Effect
The concept of the Photoelectric Effect was introduced and how light modeled as a particle can explain this, while light modeled as a wave cannot.
The above video explains the Photoelectric Effect using a PhET application which I encourage you to use and experiment with.
This can be found at:
Planck's Constant h = 6.63 x 10-34 Js
Energy of a Photon E = hf
Threshold Frequency fo , the frequency of incident photons that have an energy equal to the work function of the metal
Work Function φ = energy required to free an electron from a specific metal (J)
Maximum Kinetic Energy, Ek, of a freed electron by an incident photon:
Ek = hf - φ
Electron Volts to Joules Conversion
How Quantum Mechanics Saved Physics From Ovens
Planck's Constant - Sixty Symbols
How Quantum Mechanics Saved Physics From Ovens
Planck's Constant - Sixty Symbols
Atomic Line Spectra
Hydrogen Emission and Absorption Spectra for the visible Balmer Series
Atomic Line Spectra for Hydrogen
Emission & Absorption Lines for Hydrogen
Emission Lines for Hydrogen
Bohr Model of the Hydrogen Atom
Bohr Model of the atom and Atomic Emission Spectra
Line Spectra & the Bohr Model
Emission and Absorption Line Spectra
Energy Levels
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