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Efectul fotoelectric
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See how light knocks electrons off a metal target, and recreate the experiment that spawned the field of quantum mechanics.
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Vezi mai jos.
Resurse
Principalele subiecte
- Lumină
- Mecanică cuantică
- Fotoni
Studii de caz
- Visualize and describe the photoelectric effect experiment.
- Correctly predict the results of experiments of the photoelectric effect: e.g. how changing the intensity of light will affect the current and the energy of electrons, how changing the wavelength of light will affect the current and the energy of electrons, how changing the voltage of light will affect the current and the energy of electrons, how changing the material of the target will affect the current and the energy of electrons.
- Describe how these results lead to the photon model of light: e.g. argue that only a photon model of light can explain why, when light is shining on the metal but there is no current, increasing the frequency will lead to a current, but increasing the intensity of light or the voltage between the plates will not.
Sfaturi pentru profesori
Ghidul profesorului (pdf) conţine idei propuse de echipa PhET.
Idei pentru predare
| Title | Authors | Level | Type | Updated |
|---|---|---|---|---|
Visualization and Visual Illusions SIM Homework
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Kathy Perkins, Carl Wieman | UG-Intro | HW | 09.01.2011 |
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Intro to Photoelectric Effect Interactive Lecture
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Sam McKagan, Kathy Perkins and Carl Wieman | UG-Intro UG-Adv |
CQs Demo |
09.01.2011 |
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Understanding the Photoelectric Effect
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Sam McKagan, Kathy Perkins, and Carl Wieman | UG-Adv UG-Intro |
HW | 20.04.2010 |
| Shine a Light | Dean Baird, Paul G. Hewitt | HS UG-Intro |
Lab | 07.05.2011 |
| Photoelectric Virtual Experiment | Chee Heong Lee | HS UG-Intro |
CQs Lab |
05.01.2011 |
| Photoelectric Effect | Pauline Seales | HS | Lab | 02.08.2010 |
| photoelectric effect | David Carroll | UG-Intro HS |
Lab | 27.04.2010 |
| The Photoelectric Effect and Work Functions | Robert Pirrie | HS | Lab | 14.01.2010 |
| How to add Instruction set in Photoelectric Expt. | Pravin Joshi | UG-Intro | Lab | 02.11.2009 |
| The Photoelectric Effect | David Carroll | UG-Intro HS |
HW Lab |
18.06.2009 |
| Photoelectric Effect Virtual Experiment | Paul Longwell | HS | Lab | 19.02.2009 |
| Photoelectic Effect PhET Lab | Chris Bires | UG-Intro HS |
HW Lab |
27.05.2011 |
| The Photoelectric Effect and Work Functions | Robert Pirrie, Gary Bent | HS | Lab | 13.01.2009 |
| Photoelectric effect | Jeff Bourne | UG-Intro | Lab | 09.10.2007 |
| The Photoelectric Effect | Andrzej Sokolowski | HS | Lab | 25.04.2007 |
| Photoelectric Effect | curt miller, Donald Collins | HS | Lab | 18.09.2007 |
| Photoelectric Effect Activity | Donald Collins, Dennis Robbins | UG-Intro | Lab | 08.08.2011 |
Puteţi trimite ideile şi activităţile personale.
Versiuni traduse:
Cerinţe software
| Windows | Macintosh | Linux |
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Microsoft Windows
XP/Vista/7 Sun Java 1.5.0_15 or later |
OS 10.5 or later
Sun Java 1.5.0_19 or later |
Sun Java 1.5.0_15 or later |
Credite
| Echipa de proiectare | Alţi colaboratori | Mulţumiri |
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