Alpha Decay
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Topics
- Alpha Decay
- Half Life
- Radiation
Description
Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.
Sample Learning Goals
- Explain what happens in alpha radiation.
- Predict what happens to an element when it undergoes alpha decay.
- Explain the concept of half life, including the random nature of it.
- Begin to gain an understanding of the forces that work to hold an atomic nucleus together (strong nuclear force) and the forces that work to break it apart (Coulomb, i.e. electric charge, force).
Version 3.27
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 |
| Using PhET in High School Chemistry- all my activities in pdf |
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Trish Loeblein | HS UG-Intro |
Lab Demo HW |
Chemistry |
| Concept Questions for Chemistry using PhET |
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Trish Loeblein | UG-Intro MS HS |
MC | Chemistry |
| Alpha Decay investigations |
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Trish Loeblein | UG-Intro HS |
Lab | Chemistry Physics |
| PhET LAB Alpha (IB 7.2) |
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Benjamin Forbes | HS | Lab | Physics | |
| Nuclear Processes |
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Phil Cook | HS | Lab | ||
| PhET Sims Aligned to the Chemistry Curriculum |
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Julia Chamberlain | UG-Intro HS |
Other | Chemistry | |
| Alignment of PhET sims with NGSS |
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Trish Loeblein | HS | Other | Biology Physics Earth Science Chemistry |
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| How do PhET simulations fit in my middle school program? |
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Sarah Borenstein | MS | Other | Chemistry Earth Science Physics Biology |
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| Mapping of PhET and IBDP Physics | Jaya Ramchandani | HS | Other | Physics | ||
| MS and HS TEK to Sim Alignment | Elyse Zimmer | MS HS |
Other | Biology Chemistry Physics |
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| Investigating a radioactive decay | Lori Fritz | HS | Lab | Physics | ||
| Radioactivity | MEHMET EMIN KALE | UG-Intro HS |
HW Lab |
Mathematics Physics |
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| Instructor | Clarence Canty | Other | CQs Lab |
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| Phet Alpha Decay Simulation Lab | Drew Isola | HS | Lab Other |
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| Spinometer | Chris Mounce | UG-Adv | Demo | |||
| Radioactive Decay, Fission and Chain Reactions | Debra Krause Dandaneau | UG-Intro HS |
Lab Other |
Physics | ||
| Intrinsic Randomness | Roberta Tevlin | HS | CQs | Physics | ||
| alfa verval | Janine Nauw | HS | Lab | Physics | ||
| Radioaktiivse lagunemise meedialabori juhend | Siim Tõkke | HS | HW Lab |
Physics | ||
| 알파붕괴 SIM 사용지침서 | 이화국(Wha Kuk Lee) | HS UG-Intro |
Demo Lab |
Physics Astronomy Earth Science Chemistry |
| Design Team | Third-party Libraries | Thanks To |
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