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L I G H T. Light carries energy A light source (sun, light bulb) gives off light waves. www.howstuffworks.com/ light-bulb.htm. Light waves …. Are like the ripples in water when you drop a rock in it Go out in all directions Are called electromagnetic waves. Light Wave Lengths are….

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L I G H T

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L i g h t l.jpg

L I G H T

  • Light carries energy

  • A light source (sun, light bulb) gives off light waves

www.howstuffworks.com/ light-bulb.htm


Light waves l.jpg

Light waves …

  • Are like the ripples in water when you drop a rock in it

  • Go out in all directions

  • Are called electromagnetic waves


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Light Wave Lengths are…

  • The distance between the tops of two adjacent ripples


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Frequency is…

  • The number of wave lengths that pass a point in one second. These are some examples of different wavelengths.


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Electromagnetic Spectrum

  • Electromagnetic waves are classified according to their wave lengths and frequencies

  • There are many light waves that we cannot see

  • We can only see a very small part of the electromagnetic waves


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Electromagnetic Waves

  • As the wave length decreases the frequency increases this decides what we can see.


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Questions

  • What is a light wave?

  • What is a light wave length?

  • What is meant by the frequency of a wavelength?

  • How are electromagnetic waves classified?

  • How much can we see of the electromagnetic spectrum of light?


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Works Cited

  • Imagine the Universe

  • http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.html

  • electromagnetic wave lengths

  • NASA: Imaginers

  • http://imagers.gsfc.nasa.gov/ems/waves2.html

  • Animated wave lengths

  • Visible light graphics

  • Site Format

  • http://www.siteformat.com/tutorials/photoshop/misc/waterripples.html

  • blue ripple image

  • Google

  • http://images.google.com/images?q=light+bulb&svnum=10&hl=en&lr=&ie=UTF-8&oe=UTF-8&start=100&sa=N

  • Light bulb picture

  • Google

  • Sun picture

  • www.howstuffworks.com/ light-bulb.htm

  • light bulb graphic

  • Science Voyages: Earth & Physical Sciences

  • Glencoe /McGraw-Hill, 2001 Columbus, Ohio

  • pg. 786-789


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