Principal Sponsors
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National Science Foundation
An independent federal agency created by Congress in 1950 to promote the progress of science.
King Saud University seeks to become a leader in educational and technological innovation, scientific discovery and creativity through fostering an atmosphere of intellectual inspiration and partnership for the prosperity of society.
The O'Donnell Foundation is devoted to building model programs to enhance the quality of education.
Quantum Wave Interference
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When do photons, electrons, and atoms behave like particles and when do they behave like waves? Watch waves spread out and interfere as they pass through a double slit, then get detected on a screen as tiny dots. Use quantum detectors to explore how measurements change the waves and the patterns they produce on the screen.
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Resurse
Principalele subiecte
- Mecanică cuantică
- Fotoni
- Electroni
- Atomi
- Particule
- Unde
Studii de caz
- Visualize a photon, electron, neutron, or helium atom as a wave packet that collapses upon detection.
- Visualize what happens to the wave between slit and screen.
- Justify how the double slit experiment explains that matter and light behave as waves.
- Describe the behavior of a wave function in the presence of a detector, and explain how putting a detector over a slit destroys the interference pattern. Determine how the interference pattern will change if you change the mass, speed, or wavelength.
- Recognize large range of size scales involved in quantum interference experiments.
- Recognize that two coherent light sources can interfere, but only if they have the same wavelength.
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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Probability and Randomness Interactive Lecture
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Sam McKagan, Kathy Perkins, Carl Wieman, and Noah Finkelstein | UG-Adv UG-Intro |
Demo CQs |
09.01.2011 |
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Wave Particle Duality
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Sam McKagan, Kathy Perkins, and Carl Wieman | UG-Adv UG-Intro |
HW | 20.04.2010 |
| The Two-Slit Experiment | Roberta Tevlin | HS | CQs Demo HW |
19.05.2008 |
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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