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Properties of Light

There are 21 videos in this category and 48 videos in 7 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 8 - 18
Primary Colors of Light and Pigments (Interactive)
From pbslearningmedia.org, produced by WGBH Educational Foundation
In this interactive activity adapted from Shedding Light on Science, learn about the primary colors of light and pigment. First, see red, green, and blue gelatin blocks used as filters to demonstrate the absorption of specific wavelengths of light. T... [more]
May 19, 2012 at 11:17 PM
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Not Right For WatchKnowLearn
Ages: 8 - 13
Light - by StudyJams
From scholastic.com, produced by Scholastic
Light is a very important energy source that helps keep us warm and lets us see the world.  Light travels in waves through bundles of energy called photons. The photons contain all seven colors of the rainbow.  Grab a prism and check them out!  Learn... [more]
May 28, 2011 at 01:58 PM
Comments: 1
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Not Right For WatchKnowLearn
Ages: 14 - 18
Diffraction Explained
From YouTube, produced by Kamal Wafi
Diffraction is a wonderful and fascinating topic that I find my students have difficulty grasping at first. I hope this video gives a clear picture. (18:00)
July 22, 2012 at 01:15 PM
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Not Right For WatchKnowLearn
Ages: 15 - 18
Turning Biological Functions On and Off with Light
From sciencefriday.com, produced by Science Friday
Current research which shows how a biological function can be turned on and off with the use of a light source, with the possibility of using it in future medications. "Food coma" takes on new meaning when nematodes are fed a light-sensitive chemical... [more]
January 18, 2010 at 09:33 PM
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Not Right For WatchKnowLearn
Ages: 14 - 18
Converging Lenses
From YouTube, produced by Kamal Wafi
PowerPoint with voiced explanations goes over how to construct ray diagrams for thin converging lenses (concave and convex).  Understand the terms virtual image, object and ray.  Goes over focal length and focal point.  Three cases used as examples. ... [more]
June 16, 2012 at 08:02 AM
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Not Right For WatchKnowLearn
Ages: 10 - 18
Why Is the Sky Blue?
From YouTube
In this "Ask an Astronomer" episode (03:05), Dr. Carolyn Brinkworth fills us in on what the color of the sky has to do with finding life on distant planets.
May 2, 2010 at 07:43 PM
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Not Right For WatchKnowLearn
Ages: 13 - 18
Introduction to Light- Khan Academy
From YouTube, produced by Sal Khan
Light and electromagnetic radiation (09:37)
June 5, 2012 at 09:04 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
Light and Color
From teachersdomain.org, produced by WGBH Educational Gouindation
In this video segment adapted from Shedding Light on Science, learn about the dispersion of light, the electromagnetic spectrum, and how sunlight contains a range of wavelengths (photons of differing energy). Isaac Newton investigated sunlight by shi... [more]
August 12, 2010 at 09:43 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
Laser Waterfall
From teachersdomain.org, produced by The Education Group
In this video from the Encyclopedia of Physics Demonstrations, learn about total internal reflection. A laser beam is aligned so that the light passes through a water tank and out through an opening. As water flows out of the opening, observe how the... [more]
August 12, 2010 at 09:34 PM
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Not Right For WatchKnowLearn
Ages: 5 - 13
Bill Nye on  Light and Color
From dailymotion.com
This video features Bill Nye discussing light and color. (23:00)
February 15, 2016 at 09:46 PM
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