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VA 5th GRADE LIGHT WES MR. G. 878562

1. visible spectrum (espectro visible) The part of the electromagnetic spectrum that humans can see, ROYGBIV, of course Superman may be able to see other frequencies on the electromagnetic spectrum
2. reflection (reflexión) when light bounces off a surface
3. refraction (refracción) when light enters or exits a medium at an angle it bends because of a change in speed
4. opaque (opaco) no light can pass through; light is reflected or absorbed
5. transparent (transparente) light is transmitted through; the object is clear
6. translucent (translúcido) some light is transmitted, some is absorbed and some is scattered- example, wax paper
7. wavelength (longitud de onda) on a wave, the distance from crest to crest or trough to trough
8. crest (cresta) the top or highest part of a wave.
9. trough the bottom of a wave
10. medium solids, liquids and gases
11.electromagnetic spectrum (espectro electromágnetico) Electrical and magnetic energies including, radio & TV waves, microwaves, infrared light, visible light, ultraviolet light, X-rays, and gamma rays (ordered longest to shortest wavelengths)
12. ROYGBIV acronym for the colors of the rainbow (visible spectrum): Red, Orange, Yellow, Green, Blue, Indigo and Violet in order from LONGEST to SHORTEST
13. convex (convexo) a surface that is curved outward (light waves become focused)
14. concave (cóncavo) a surface that is curved inward (light waves are spread out)
15. lens (lente) a curved piece of transparent material used to refract light
16. mirror (espejo) a smooth, very reflective surface, reflected images are reversed
17. absorb (absorba) to take in or swallow up (rather than transmit or reflect)
18. transmit (transmita) to go through
19. X-rays, radio waves, microwaves, gamma rays, etc. energy on the electromagnetic spectrum that humans can not see - perhaps Superman can!
20. prism (prisma) A triangular shape lens that refracts white light in to its component part - ROYGBIV, the visible spectrum or colors of the rainbow - rains drops can act like prism and create rainbows (but not pots of gold!)
21. Sir Issac Newton Proved white light was actually all the colors of the spectrum, coined the term spectrum meaning ghostly image - he lived in the mid 1600's and early 1700's and was a member of the Royal Society
22. Galileo The first person to use a telescope to study astronomy in depth - he supported the theory that the sun is the center of our solar system and therefore was placed under house arrest by the Church
23. Anton Van Leeuwenhoek A Dutch man that ground lenses as hobby (he was a haberdasher) made the first useable microscope - first to see single cells organisms - joined the Royal Society
24. Robert Hooke Using a microscope he described "little boxes" or cells
25. Particle and Wave Models Two models of light scientists use to explain its properties, characteristics, and behaviors
26. Light waves are transverse. (Sound is a longitudinal wave.) What type of waves are light?
list by sgissend@gmail.com
Created by: stevegissendanner on 2012-03-05

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