De Broglie wavelength. Bohr atom (3)

Physics: Quantum mechanics--wave/particle duality and quantization. Photons: wavelength, energy, frequency (E=hf). Electrons and other particles with mass: de Broglie wavelength, momentum, energy. The Bohr model of the atom

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http://www.youtube.com/watch?v=x0US9BjJ410&feature=PlayList&p=9132B2F...

(1) Classical vs. modern physics. Wave-particle duality; quantized vs. continuous
(2) A flowchart for photons: wavelength, frequency, energy. Electron volts
(3) Continued. E=hf
(4) Continued. Energy quantization in photons
(5) A flowchart for electrons and other particles with mass: de Broglie wavelength, momentum, velocity, kinetic energy
(6) Continued. Potential energy, potential difference
(7) A de Broglie wavelength problem
(8) Another problem
(9) Continued
(10) The Bohr model of the atom
(11) Continued
(12) Continued
(13) A problem

Category:

Education

Tags:

• physics
• quantum
• mechanics
• de
• broglie
• wavelength
• photon
• energy
• frequency
• bohr
• model
• atom
• momentum

[occamsrazorblades]

I disagree. Graphics (like powerpoint) are the crutch of lazy educators and students who want to read a pre-written presentation. This is among the best educational videos because the student is led through the entire thought process. It also demonstrates to the "internet savvy" generation what truly understanding a subject is (versus "googling it"). 

[DanFrederiksen]

also 700nm is at the edge of the visible spectrum. a rule of thumb is that red, green, blue is around 650, 550, 450nm respectively.

red is around 500THz or half a petaHertz.

good video but a refined much faster version could be formulated from the experience. graphics could be prepared as opposed to slowly formed on the blackboard. I set a lofty goal but just saying in case you want to go for something exceptional. I would suggest QED as the first topic. I think that would have greatest appeal

[pjholl]

Your frequency appears to be 14 orders of magnitude too small. A freqency of 4.3Hz corresponds to a wavelength of almost 70,000km. It should read 4.3x10^14Hz for a wavelength of 700 billionths of a metre.

Very good educational vid.