http://www.teachengineering.org/view_lesson.php?url=collection/cub_/lessons/cub_energy2/cub_energy2_lesson03.xmllessontext/xmlIntegrated Teaching and Learning Program, electromagneticlenslight energypolarizationprismrefractionslinkyspectrumwavelengthwavesElectromagnetic spectrumLensLight energyLight speedLight yearPhotonPolarizationPrismReflectRefractRefractionWaveWavelength

In this introduction to light energy, students learn about reflection and refraction as they learn that light travels in wave form. Through hands-on activities, they see how prisms, magnifying glasses and polarized lenses work. They also gain an understanding of the colors of the rainbow as the visible spectrum, each color corresponding to a different wavelength.

Engineers use the properties of light to create many things that benefit society. To reduce our energy use, lighting engineers take advantage of natural light, sometimes reflecting sunlight off room surfaces to bring light to locations at a distance from windows. Engineers create lasers that are so bright that they can burn through metal. Lasers are used in industry, medicine and surgery, to make holograms, read bar codes and compact disks, and send messages along fiber-optic cables. The properties of light are also exploited in the design of medical equipment, cameras and microscopes. Understand that light is a form of energy and that it can be characterized as a wave. Comprehend that different colors of the spectrum represent light waves vibrating at different frequencies.Describe reflection and refraction of light waves. Understand how engineers use light waves. 15TeachEngineering.orgSharon D. Perez-SuarezJeff LyngMalinda Schaefer ZarskeDenise Carlsonhttp://www.teachengineering.org/collection/cub_/lessons/cub_energy2/cub_energy2_lesson03_electspect.pdfhttp://www.dictionary.com/http://imagine.gsfc.nasa.gov/docs/science/know_l1/emspectrum.htmlGraham, I., Taylor, B, Farndon, J. and Oxlade, C. Science Encyclopedia. 1999, p. 78-90.http://www.opticalres.com/kidoptx.htmlS11417D6International_Technology_Education_Association-ITEA_STL_StandardsTechnologyC. Energy comes in different forms. 35S11424F3ColoradoSciencea. Identify and describe the variety of energy sources 44S11424F5ColoradoSciencec. Describe the energy transformation that takes place in electrical circuits where light, heat, sound, and magnetic effects are produced 44United StatesCopyright 2012 - Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulderhttp://www.teachengineering.org/policy_ipp.phphttp://www.teachengineering.org/2011-03-284Teacher