Science+Fair+Lit+Review+OJ2


 * Review of Literature **

 Snell's law measures the index of refraction, incidence, speed of light in certain mediums, identifies unknown substances, and identifies its density. It's also the path the light takes by a boundary or surface between two different mediums, and refractive index of each medium. (Snell's Law (physics)) It is used in numerous situations, such as identifying if a space is a vacuum or an unknown solution. The best way is to point a light, or introduce a light into the equations, to measure the speed of light.(Snell's Law Math Images)

 According to Khan Academy, some examples are vacuum, 1.00000, Air, 1.00029, Water, 1.33, Ice, 1.31, regular glass, 1.52, Cooking Oil, 1.53, Heavy glass, 1.65, Sapphire, 1.77 and, Diamond, 2.42. The speed of light causes refraction, it can faster or slower depending on the media, and it is referred as the bending of light. An example is that light travels faster in a vacuum than it does in light. (Measuring Sugar Content) It also has to do with temperature of the air surrounding the light. (Khan,Sal) Light travels both in waves and in straight lines. It just matters on how you project the light, through a laser or a light bulb.

Refraction is also a major role in Snell's Law. Refraction is the bending of a light wave as it passes through two mediums. It is caused by change in light speed when it changes media. Light can refract towards the normal or away, depending on optical density in which it passes through, depending on the angle the light enters. When light passes through media 1, its considered fast, when it passes through media 2, its then considered slow. This happens because when entering a new media, light slows down. (Snell's Law)

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= = = **Works Cited ** =

Khan, Sal. "Snell's Law Example | Waves and Optics |Khan Academy." //Khan Academy //. Khan Academy, 20 Feb. 2011. Web. 25 Sept. 2013. <[]>.


 * Example equations and Material Refraction reference.

"Measuring Sugar Content of a Liquid with a Laser Pointer." //Measuring Sugar Content of a Liquid with a Laser Pointer //. Science Buddies, n.d. Web. 24 Sept. 2013. <[]>.


 * This website is hosted by experienced teachers.

"Snell's Law." // Math Images RSS //. Math Forum, n.d. Web. 03 Oct. 2013. <[]>.


 * This website is full of information used to solve various equations

"Snell's Law (physics)." // Encyclopedia Britannica Online //. Encyclopedia Britannica, n.d. Web. 01 Oct. 2013. < [] >.


 * Its a website run by professionals,and is also published as an encyclopedia.

"Snell's Law." //Snell's Law //. The Physics Classroom, n.d. Web. 24 Sept. 2013. <[]>.


 * This website is run and made by high school teachers for their students