Teacher Demonstration
Use the live model as a shared screen demonstration before students try their own predictions and observations.
Physics / Modern Physics
Michelson_Interferometer_Model
Run Description 1 as a browser-based WebEJS model for modern physics.
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1. Watch or Launch
Launch the Interactive
Open the simulation, adjust the controls, and compare what changes on screen before answering the concept-check questions.
2. Big Ideas
Key idea Modern quantum interactives should be interpreted through their displayed evidence: spectra, photon energy, wavefunctions, detector patterns, probability density, correlations, or measurement readouts.
What Students Can Learn
- Identify the quantum quantity represented by the model.
- Use graph, spectrum, detector, probability, or readout evidence.
- Change one control before comparing outcomes.
- Connect the observed response to the represented quantum mechanism.
Guiding Question
What displayed evidence supports the quantum explanation on this page?
3. Try the Investigation
Identify the Display
Decide whether the model is showing a spectrum, detector pattern, probability graph, energy level, or measurement result.
Change One Control
Adjust one setting linked to the displayed quantum quantity.
Read the Evidence
Compare the graph, spectrum, detector pattern, or readout before and after the change.
Explain the Quantum Link
Connect the observed change to photon energy, probability, measurement, energy levels, or wave behaviour as appropriate.
4. Teacher Notes
Lesson Use
Use this as a model-evidence lesson. Students should first name the representation before using quantum vocabulary.
Discussion Prompts
Ask: What is being measured or represented? What changed on screen? Which part of the display supports the claim?
Teaching Moves
Require a prediction and a display-based observation before the explanation. This keeps the page from becoming a generic concept quiz.
Model Notes
This is the general Modern Physics fallback; narrower profiles should be used when the page source identifies a specific simulation type.
5. Concept Check
These questions are generated from the topic and the concept illustrated by the simulation. Use them after students have explored the model.
Concept Score
Correct first attempts build a streak and unlock higher point multipliers on this device.
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0current streak
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Answer each question once to build your streak.
1. What does accuracy mean?
2. What does precision mean?
3. Which error usually affects accuracy by shifting all readings?
4. Why repeat measurements?
5. What is a precise but inaccurate set?
Expert Challenge
Unlocks after 3 correct concept-check answers on this page.
1. In a Michelson interferometer interactive, what should students compare?
2. What feedback fits 'moving a mirror cannot change fringes'?
3. How should students interpret bright and dark fringes?
4. What should students check when wavelength changes?
5. What makes an interferometer answer expert-level?
7. Learning Pulse
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