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There are 9 videos in this category and 0 videos in 0 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 10 - 18
1050 Views:
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With just a few ingredients, you will have the power to make a glass vanish right before your eyes! Okay, maybe it's not magic, but a really cool science experiment about index of refraction making an object appear invisible. Steve Spangler does a gr...eat job of explaining the science behind this vanishing trick. (03:10)
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March 27, 2011 at 12:19 AM
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Not Right For WatchKnowLearn
Ages: 9 - 18
539 Views:
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In this interactive activity featuring videos adapted from the Rutgers PAER Group, observe the refraction of light as it passes through transparent objects. In the first example, when a convex lens is placed in the path of parallel beams of light, th...e beams converge after passing though the lens. In the second example, when a concave lens is placed in the path of parallel beams of light, the beams diverge after passing through the lens. In the third example, when a rectangular piece of glass is placed in the path of a beam of light, the light bends at the boundary both into and out of the glass.
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May 20, 2012 at 03:09 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
397 Views:
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In this interactive simulation adapted from the University of Colorado's Physics Education Technology project, learn how lenses refract light to form images. Experiment with different ray display options (marginal rays or many rays) to investigate ho...w a convex lens refracts light. Adjust the curvature, refractive index, and diameter of the lens to see how the focal length changes and how the resulting image is affected. Manipulate the placement of the object to observe its relationship to image size and location.
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May 6, 2012 at 04:22 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
355 Views:
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This video explains how light travels through different materials to our eyes—or refraction. Refraction is the slowing down or bending of light as it moves through different transparent substances. This video explains the index of refraction, which... is the speed of light in a vacuum divided by the speed of light in material. It provides a demonstration that shows how to create a mirage using a tank, fresh water, salt water, and a laser. (4:52)
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May 27, 2012 at 12:07 PM
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Not Right For WatchKnowLearn
Ages: 7 - 14
1053 Views:
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In this video they discuss the history of refraction and do some interesting experiments. It also discusses index of refraction, Snell's Law, displacement, and shows the bending of light. Video is good quality and good for all students as review or i...nitial learning of the concept. The video includes closed captioning. Run time 10:03.
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July 31, 2009 at 05:16 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
2312 Views:
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This is a clip from the Blinding you with Science video series featuring Dr. Loopy. In this clip Charlesetta sings about light refraction. The educational lyrics are sung to the tune of Somewhere Over the Rainbow. Run time 0:59.
July 27, 2009 at 12:32 PM
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Not Right For WatchKnowLearn
Ages: 9 - 18
1064 Views:
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In this interactive activity featuring videos adapted from the Rutgers PAER Group, observe the refraction of light as it passes through transparent objects. In the first example, when a convex lens is placed in the path of parallel beams of light, th...e beams converge after passing though the lens. In the second example, when a concave lens is placed in the path of parallel beams of light, the beams diverge after passing through the lens. In the third example, when a rectangular piece of glass is placed in the path of a beam of light, the light bends at the boundary both into and out of the glass. No audio.
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August 12, 2010 at 09:53 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
898 Views:
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Refraction is the bending of light that occurs when light changes media. This experiment includes a rod, oil, water, and a glass beaker. No narration but clear, visible demonstration. (02:04)
March 27, 2011 at 12:08 AM
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Not Right For WatchKnowLearn
Ages: 13 - 18
785 Views:
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Snell's Law: Used to determine the direction of light rays through refractive media with varying indices of refraction. The indices of refraction of the media are used to represent the factor by which a light ray's speed decreases when traveling thro...ugh a refractive medium, such as glass or water, as opposed to its velocity in a vacuum. (02:09)
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March 27, 2011 at 12:02 AM
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