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MODERN
PHYSICS |
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| 70 | MODERN PHYSICS | Rating: |
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Description: |
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| 7A0 | QUANTUM EFFECTS |
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| 7A10 | Photoelectric Effect |
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| 7A10.10A | Photoelectric effect in zinc - Video | Video Encyclopedia :Zinc plate on an electroscope, charged negative, glass UV barrier. |
VE24_19
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3_1
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PS F175
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| 7A10.10B | Photons and X-rays: Photoemission by Sunlight | Cinerma Classics: A piece of zinc on an electroscope is charged negatively and then discharged by sunlight. Sunlight passing throug glass stops discharge. |
CC3F31
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3_1
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PS F175
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| 7A10.15 A | Discovery of photoelectric effect | Demonstration using the photoelectric equipment by Daedalon. |
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Ea2
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PS F175
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| 7A10.20 | Photons and X-rays: Photoemission by light from a carbon arc lamp | Cinerma Classics: A portion of the spectra is shining on a piece of zinc connected to an electroscope. Only the ultraviolet seems to discharge it. The other colors have not effect. |
CC3F32
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3_1
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PS F175
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| 7A10.27 | Photons and X-rays: Photoelectric Experiment | Cinerma Classics: The voltage needed to stop the photoelectric for each color is shown. The student determines Planck's Constant. |
CC3F33
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3_1
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PS F175
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| 7A10.40 | Solar cells - Video | Video Encyclopedia :Shine a bright light on selenium solar cells and run a small motor. |
VE24_21
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3_1
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PS F175
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| 7A15 | Millikan Oil Drop |
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| 7A15.10 | Millikan oil drop - Video | Video Encyclopedia :The real experiment and an animated sequence explaining the apparatus. |
VE24_24
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3_1
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PS F175
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| 7A15.10 | Electrons: Millikan Experiment | Cinema Classics: A small charge is placed on oil droplets. A small voltage between two plates applies a force that counteracts the force of gravity on the oil drop. The quantization of charge is shown. |
CC3F43
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3_1
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PS F175
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| 7A50 | Wave Mechanics |
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PS F175
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| 7A50.20 | Microwave barrier penetration - Video | Video Encyclopedia :Microwaves are totally reflecting off a plastic prism until another is touching the first. |
VE24_22
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3_1
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PS F175
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| 7A50.32 | De Broglie Wavelength and Bohr Orbits | A sinusoidal wave is printed on transparent material that can be wound up. As the radius of the windings gets bigger the waves add constructively (line up) or destructively (not lined up) like the De Broglie wavelengths in the Bohr orbit of the hydrogen atom. |
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PS F175
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| 7A55.00 | Particles and Waves: Comparing Particles and Waves | Cinema Classics: Comparisons are made between particles and waves when they hit a barrier. Traditional waves are represented by light and particles are represented by spray paint from an air brush. |
CC3F51
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3_1
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PS F175
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| 7A55.00 | Particles and Waves: Davison-Germer Experiment: First Detection of Matter Waves | Cinema Classics: A look at the first experiment to show matter waves three years after deBroglie made his hypothesis. |
CC3F53
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3_1
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PS F175
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| 7A55.00 | Particles and Waves: G.P. Thomson's Experiment: Early Detection of Matter Waves | Cinema Classics: In 1925 G.P. Thomson confirmed the deBroglie hypothesis that electrons have wave properties. In his experiment ans electron beam was direct at a gold foil. |
CC3F54
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3_1
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PS F175
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| 7A60 | X-ray and Electron Diffraction |
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PS F175
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| 7A60.10 | Particles and Waves: Electron Diffraction | Cinema Classics: Shows the apparatus needed to complete an electron diffraction experiment and the results of that experiment. |
CC3F52
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3_1
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PS F175
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| 7A60.10 | Electron diffraction - Video | Video Encyclopedia :Rings are obtained from a commercial tube with a graphite target. |
VE24_23
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3_1
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PS F175
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| 7A60.24 | Optical Analog of X-ray Diffraction | Two diffraction gratings are oriented at right angles and a small lecture laser projects a pattern of dots similar to x-ray diffraction. |
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Ga3
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PS F175
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| 7A60.61 | Ripple Tank Bragg Reflection - Video | Cinema Classics: Diffraction: Water Waves - Bragg Diffraction. Plane waves in a ripple tank show Bragg reflection from a regular array of rows of pegs. Wavelength of plane waves, peg spacing and angle of incidence are examined. |
CC2D22
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3_1
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PS F175
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| 7A60.700 | X-ray Bragg Diffraction - Video | Cinema Classics: Diffraction: Bragg Diffraction Equation. The components of Bragg reflection are shown by animation for the parameters of d (separation of layers), wavelength, angle of incidence and interference maxima or minima. X-rays are used. |
CC2D25
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3_1
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PS F175
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| 7A60.90 | Condensed Matter: X-ray Diffraction | Cinema Classics: Diffraction patterns are shown to change as a crystals become smaller. This progression shows how powders produce lines of x-ray diffraction rather than spots. |
CC3F72
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3_1
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PS F175
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| 7A60.92 | Condensed Matter: Crystal Lattices | Cinema Classics: The many planes of the salt crystal are drawn to shown that planes of atoms exist. |
CC3F71
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3_1
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PS F175
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Records 2 to 26 of 90
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