Light Vocabulary

5. A high energy electromagnetic wave with a short wavelength and higher frequency than all other types of electromagnetic waves, used to treat cancer
8. A material that allows almost all of the light striking it to pass through, and through which objects can be seen clearly.
11. a mirror that curves outwards
12. a low frequency, low energy electromagnetic wave that has a wavelength longer than 30cm, used to encode sound information for police, firefighters, and taxis.
15. optical device that produces magnified images of distant objects
17. Green red and blue. Adding the three primary colors of light produce the colors of pigment and white.
18. a material through which light does not pass
19. part of the electromagnetic spectrum that you can see. ROY G BIV

1. a mirror that curves inwards
2. a lens that is thicker at the edges than in the middle
3. a flat mirror that forms a virtual image
4. The entire range of electromagnetic waves with different frequencies and wavelengths
6. A material that allows most of the light that strikes it to pass through, and through which objects appear blurry.
7. a low frequency, low energy electromagnetic wave that has a wavelength between between 1mm and 30cm, used to heat food or call someone
9. A high energy electromagnetic wave that has a slightly shorter wavelength and higher frequency than an ultraviolet wave, used to see bones
10. an electromagnetic wave that has a wavelength shorter than microwaves, but longer than visible light, used to help locate people and see in the dark
13. a lens that is thicker in the middle than at the edges
14. an electromagnetic wave that has slightly shorter wavelength and higher frequency than visible light, used to kill bacteria and produce vitamin D
16. ster an optical device that produces a narrow beam of coherent light