Instructional Video16:02
3Blue1Brown

The Brachistochrone, with Steven Strogatz

12th - Higher Ed
A classic problem that Johann Bernoulli posed to famous mathematicians of his time, such as Newton, and how Bernoulli found an incredibly clever solution using properties of light.
Instructional Video3:56
3Blue1Brown

Snell's law proof using springs: Brachistochrone - Part 2 of 2

12th - Higher Ed
A clever mechanical proof of Snell's law.
Instructional Video9:20
SciShow

5 Weird Things That Can Catch Fire

12th - Higher Ed
Fire: it's beautiful, it's dangerous, and it shows up in surprising places. Here are five weird things you might have on hand that can go up in flames. Chapters 0:00 0:05 0:11 0:17 0:23 0:29
Instructional Video3:57
3Blue1Brown

Snell's law proof using springs

12th - Higher Ed
A clever mechanical proof of Snell's law.
Instructional Video11:20
Bozeman Science

Refraction of Light

12th - Higher Ed
In this video Paul Andersen explains how light can be refracted, or bent, as it moves from one medium to another. The amount of refraction is determined by the angle of incidence and the index of refraction. Snell's Law can be used to...
Instructional Video3:40
Curated OER

Physics 11.2.3a - Snell's Law

9th - 12th
Snell measured the angles of refraction through water and developed a formula for calculating a refraction. In this educational video clip, the teacher explains how it came about. It is most applicable to your high school physics class.
Instructional Video
Incorporated Research Institutions for Seismology

Iris: Seismic Wave Behavior: A Single Boundary Refracts & Reflects

9th - 10th
This introduction to seismic wave behavior describes Snell's Law and how it applies to layers in the earth. It addresses reflected, refracted, critically refracted, and head waves. Seismic waves travel at different speeds through...
Instructional Video
Crash Course

Crash Course Physics #38: Geometric Optics

9th - 10th
This video episode of Crash Course Physics focuses on LIGHT! Let's talk about it today. Sunlight, moonlight, torchlight, and flashlight. They all come from different places, but they're the very same thing: light! It's what makes it...
Instructional Video
Incorporated Research Institutions for Seismology

Iris: Seismic Wave Behavior: Critically Refracted Rays

9th - 10th
How are wave paths determined? Which wave paths are the fastest? Find out with the help of this brief video. [0:43]
Instructional Video
Khan Academy

Khan Academy: Waves and Optics: Total Internal Reflection

9th - 10th
A discussion of critical incident angle and total internal reflection. [7:55]
Instructional Video
Khan Academy

Khan Academy: Waves and Optics: Snell's Law Example 2

9th - 10th
An exploration of Snell's Law using the example of a beam of light being refracted through a pool of water. [11:25]
Instructional Video
Khan Academy

Khan Academy: Waves and Optics: Snell's Law Example 1

9th - 10th
Learn about waves and optics by discovering this example of Snell's Law. [10:44]
Instructional Video
Khan Academy

Khan Academy: Waves and Optics: Refraction and Snell's Law

9th - 10th
A video lecture discussing refraction and Snell's Law. Learn about the bending of a light's path as it travels through different mediums. Understand what causes refraction and how to calculate the angle of refraction. [14:23]
Instructional Video
Incorporated Research Institutions for Seismology

Iris: Layers of the Earth What Is the Moho?

9th - 10th
This animation discusses the history of the discovery of the Mohorovicic Discontinuity, as well as the logic behind it. Spoiler Alert: It is about Snell's Law. [9:22]
Instructional Video
Bozeman Science

Bozeman Science: Physics: Refraction of Light

9th - 10th
In this video, Paul Andersen explains how light can be refracted, or bent, as it moves from one medium to another. The amount of refraction is determined by the angle of incidence and the index of refraction. Snell's Law can be used to...
Instructional Video
Khan Academy

Khan Academy: Refraction and Snell's Law

9th - 10th
This article from Khan Academy provides information about refraction and Snell's Law. This information is intended for high school physics.
Instructional Video
Khan Academy

Khan Academy: Snell's Law Example 2

9th - 10th
This study resource from Khan Academy for the MCAT explores the topic of "Snell's Law" as it pertains to physical processes.
Instructional Video
Khan Academy

Khan Academy: Snell's Law Example 1

9th - 10th
This video lesson provides an example of the application of Snell's Law. This video lesson was developed in collaboration with the Association of American Medical Colleges and Khan Academy.
Instructional Video
Khan Academy

Khan Academy: Refraction in Water

9th - 10th
This article from Khan Academy provides information about refraction in water. This information is intended for high school physics students.