OCR AS level Physics: Quantum Physics

OCR AS level Physics presentations for module 4: Quantum Physics.

All presentations are full lesson PowerPoints with worked examples and homeworks with complete worked answers.

The Photon Model

• Energy of a single photon
• Converting from electron-volts to Joules.
• Frequency of the electromagnetic spectrum
• Determining Plank’s constant with LEDs
• Threshold potential difference difference

Photoelectric Effect

• Threshold frequency
• Producing photoelectrons
• Kinetic energy of photoelectrons
• Linking frequency and wavelength
• The electromagnetic spectrum, frequency and energy.

Einstein’s Photoelectric Equation

• The photoelectric equation
• Work function and Kinetic Energy
• Determining work function from a graph
• Determining threshold frequency from a from graphical analysis.
• Determining Plank’s constant from graphical analysis.

Wave Particle Duality

• deBroglie wavelength equation
• Diffraction of electrons and protons
• Comparing wavelengths of particles with different masses
• Kinetic energy and wavelength