1. An indication that light is a wave is2. The colors of an oil slick indicate that3. The index of refraction measures4. Light waves are5. The resolution of a human eye is about6. Which of the following has the lowest index of refraction7. As the wavelength of light decreases, the frequency8. In one millionth of a second, light will travel9. A stop sign is bright when you shine the headlamps of your car on it. It most likely is covered with10. Diamonds sparkle in many colors because11. Which of the following are retroreflectors12. Two soap bubbles from the same soap appear different colors. They probably have13. If c is the speed of light in vacuum, then the speed of light in glass is approximately14. Stealth bombers are undetected by radar, in part because15. Rainbows show different colors because16. Which of the following is polarized17. A fiber can send much more information per second than a wire because18. Which color of light would give the highest number of bits per second in fiber optics19. Shannon is famous for having invented or discovered20. The human eye has cones that detect21. People squint to see better because squinting22. Old people need reading glasses because their23. Red-eye in photographs come from24. Red-eye demonstrates that25. Your eye has26. Light is polarized when it bounces off (choose all that apply)27. Sunglasses can help you see a fish underwater because28. Polaroids are used for 3-D movies because29. Stress in plastic can be detected by looking at30. In the pinhole camera, more blurring occurs if31. Holograms depend on the fact that light32. A successful fisherman will throw the spear33. To make a spy satellite that can read a license plate, you would have to34. The wavelength of visible light is closet to the diameter of35. The Keck telescope is "powerful" because36. When we say a man is color blind, we usually mean that37. The Keck uses what to focus light38. Light in a vacuum goes 1 foot every nanosecond. In water,in one nanosecond it will go about39. Present-day 3-D movies make use of which technology40. A computer screen does not have spots that are colored41. For a good telescope (like Hubble) in geosynchronous orbit (HEO), a typical resolution (for objects on the surface) is about42. A major use of fiber optics is for43. Which of the following has the highest frequency44. Which of the following has the lowest frequency45. If you double the absolute temperature of an object, the wavelength of the emitted light46. Which kind of light has the longest wavelength47. Invisible light includes48. As an object gets hotter and hotter, the color of its glow will change from49. Radio waves and x-rays have the50. If you double the absolute temperature, the total radiation51. Most of the energy of an ordinary tungsten-filament lightbulb is emitted in the color52. Heat radiation is also called53. A tungsten lightbulb has 100 watts printed on it. About much power is actually emitted as visible light54. Which color star would be the hottest55. Sunlight is brightest in which color56. Which of the following exposes a person to the kind of radiation that can cause cancer?57. Because of their warmth, humans emit primarily58. If you sleep under a tree, you won't get wet from morning dew. That's because the tree59. Dew forms when the ground cools60. A "heat-seeking" missile actually aims itself toward61. The ozone layer is created by and absorbs (choose all that are correct)62. A few years ago, a certain kind of spray can was banned. These were the cans that used63. Multisprectral refers to64. The name NMR has been changed to65. Which of the following about the ozone layer is not true66. The clouds in thunderstorms rise until they reach67. The original name for the microwave oven was68. Microwaves use radiation with a wavelength69. The microwaves in a microwave oven mostly heat70. MRI maps the distribution of which element to produce an image71. UV light (choose all that are correct)72. Which of the following is best for seeing the calcium in bones73. A black light is designed to emit74. A positron is75. Sunburn is usually caused by76. Which of the following uses antimatter77. To image the hydrogen in the body, use78. Which is the cause for "windburn"79. Remote control of a TV is usually done using80. Pit vipers and mosquitoes can sense81. Infrared radiation can (choose all that apply)82. Cancer is most likely to be caused by83. The advertising slogan "whiter than white" means that the material84. To make clothes appear extra clean, manufacturers apply85. Which of the following is a typical energy for an x-ray86. In total darkness, you can see people if you have a camera that is sensitive to87. Cell phones emit88. Bats navigate in cave by using89. The phosphor of a fluorescent lightbulb turns which if these into visible light90. "Cool roofs"91. The best kind of radiation to purify water is92. Which of the following are electromagnetic waves (choose all that are appropriate)93. Which of the following is an advanced method that uses x-rays94. Higher carbon dioxide levels than we have now were last seen about95. The country that produces the most carbon dioxide each year is96. The country that produces the most carbon dioxide per person every year is97. The greenhouse effect currently warms the Earth by approximately98. Which fossil produces the most CO (subscript 2),per pound, when burned99. Converting coal to oil is achieved with100. Carbon dioxide in the atmosphere has increased over the past 100 years by101. Ice in Antarctica is102. A treaty that was signed by the United States but not ratified by the Senate is103. According to the text, wind power is104. Clean Coal105. In France, nuclear power produces what percentage of the electricity106. In the United States, nuclear power produces what percentage of the electricity107. The organization that studies climate change is108. Which of these years had the warmest climate109. If the Unites States reduce CO (subscript 2) emissions to those suggested by the Kyoto treaty, and the developing nations continued to increase theirs at the current (allowed) rate, then global warming would be delayed by about110. The greenhouse effect involves atmospheric emission of111. To be affordable without subsidy or carbon credits, the cost of a billion-watt solar plant must not be much more than112. The average temperature of the Earth is now about113. Which country produces the most greenhouse gas emission per GDP114. A key feature
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