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This video covers refraction and the refractive index, which is based on density. It also explains why the angle of refraction is different than the angle of incidence and how this knowledge is helpful when it comes to lenses.
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Concepts
Additional Tags
Instructional Ideas
- Place a straw into different liquids to observe various angles of refraction
- Have class members watch the video before coming to class for a discussion of the concepts
Classroom Considerations
- Requires prior knowledge of sine
- Keep in mind that YouTube comment are open to the public and may be inappropriate
- Video is the 35th in a series of 49
- This video is hosted on YouTube
Pros
- Provides closed captioning and a full written script, which is great to have on hand for reference
- Awesome resource for visual learners
Cons
- None