2. Electromagnetic Spectrum ColorOptic Tools The Human Eye Grab Bag 10 20 30 40 50

3. Question 1 - 10 What type of waves have the longest wavelength?

4. Answer 1 – 10 Radio waves

5. Question 1 - 20 What type of high energy wave can be used to see through skin and get medical images of the body?

6. Answer 1 – 20 X-rays

7. Question 1 - 30 What do we call the portion of the electromagnetic spectrum that we can see?

8. Answer 1 – 30 Visible light

9. Question 1 - 40 Which part of the electromagnetic spectrum has the highest energy waves?

10. Answer 1 – 40 Gamma rays

11. Question 1 - 50 Name the parts of the electromagnetic spectrum in order from longest wavelength to shortest.

12. Answer 1 – 50 Radio waves Microwaves Infrared waves Visible light Ultraviolet light X rays Gamma rays

13. Question 2 - 10 What color process uses the additive color technique to create different colors?

14. Answer 2 – 10 RGB

15. Question 2 - 20 What are the three primary colors of pigments?

16. Answer 2 – 20 magenta, Cyan Yellow

17. Question 2 - 30 What primary colors are used to create an image on a TV screen?

18. Answer 2 – 30 Red Green Blue

19. Question 2 - 40 What color would be created if a store clerk mixes yellow and magenta pigments into white paint?

20. Answer 2 – 40 red

21. Question 2 - 50 What happens when white light falls on a piece of blue cloth?

22. Answer 2 – 50 The blue light is reflected off and all other colors are absorbed.

23. Question 3 - 10 What do we call a translucent material with at least one curved surface?

24. Answer 3 – 10 lens

25. Question 3 - 20 A plastic or glass triangle that separates white light into colors is called what?

26. Answer 3 – 20 prism

27. Question 3 - 30 A tube of glass that uses total internal reflection to send signals of light is what?

28. Answer 3 – 30 Fiber optics

29. Question 3 - 40 A piece of metal or plastic with many slits used to separate white light into color is

30. Answer 3 – 40 Diffraction grating

31. Question 3 - 50 Using multiple mirrors or lenses to reflect or refract light is an ….

32. Answer 3 – 50 Optical system

33. Question 4 - 10 Photoreceptors that detect color

34. Answer 4 – 10 cones

35. Question 4 - 20 Photoreceptors that detect brightness of light

36. Answer 4 – 20 rods

37. Question 4 - 30 The part of the eye that bends light

38. Answer 4 – 30 lens

39. Question 4 - 40 Part of the eye that changes light into signals for the brain

40. Answer 4 – 40 retina

41. Question 4 - 50 The process by which humans use two eyes to see depth

42. Answer 4 – 50 Stereoscopic vision

43. Question 5 - 10 Where do we find electrons with a higher energy level within the atom?

44. Answer 5 – 10 Farther from the nucleus

45. Question 5 - 20 Heating a substance until it glows

46. Answer 5 – 20 incandescence

47. Question 5 - 30 The glow-in-the-dark process where phosphorus atoms slowly release light energy.

48. Answer 5 – 30 photoluminescence

49. Question 5 - 40 When does an atom emit light?

50. Answer 5 – 40 When its electron falls to a lower energy level.

51. Question 5 - 50 How does the human eye focus on objects of various distances?

52. Answer 5 – 50 The lens changes shape.