Simplified MRI
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Topics
- MRI
Description
Is it a tumor? Magnetic Resonance Imaging (MRI) can tell. Your head is full of tiny radio transmitters (the nuclear spins of the hydrogen nuclei of your water molecules). In an MRI unit, these little radios can be made to broadcast their positions, giving a detailed picture of the inside of your head.
Sample Learning Goals
- Recognize that light can flip spins if the energy of the photons matches the difference between the energies of spin up and spin down.
- Recognize that the difference between the energies of spin up and spin down is proportional to the strength of the applied magnetic field.
- Describe how to put these two ideas together to detect where there is a higher density of spins.
Version 1.08
Teacher Tips
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Overview of sim controls, model simplifications, and insights into student thinking ( PDF ). |
Teacher-Submitted Activities
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Authors | Level | Type | Subject |
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| Visualization and Visual Illusions SIM Homework |
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Kathy Perkins, Carl Wieman | UG-Intro | HW | Physics |
| MRI lecture and homework |
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Sam McKagan, Kathy Perkins, and Carl Wieman | UG-Adv UG-Intro |
Demo CQs |
Physics |
| Undergrad MRI Workshop Activity |
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Paul Kinghorn | UG-Intro UG-Adv |
CQs HW Lab |
Biology Physics |
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| Alignment of PhET sims with NGSS |
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Trish Loeblein | HS | Other | Chemistry Earth Science Physics Biology |
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| How do PhET simulations fit in my middle school program? |
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Sarah Borenstein | MS | Other | Chemistry Biology Earth Science Physics |
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| MS and HS TEK to Sim Alignment | Elyse Zimmer | HS MS |
Other | Physics Biology Chemistry |
| Design Team | Third-party Libraries | Thanks To |
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