Standard+7+Part+2+Light+and+Sound


 * Standard 7, Part 2: Essential Questions **

39. What is the electromagnetic spectrum? 40. What are the types of waves included in the electromagnetic spectrum? 41. What are the characteristics of the waves in the electromagnetic spectrum (in terms of frequency, wavelength, and wave speed)? 42. What is the order of the types of waves in the electromagnetic spectrum from the lowest frequency-longest wavelength to the highest frequency-shortest wavelength? 43. How does the energy in the various electromagnetic waves compare to the frequency and wavelength of the electromagnetic waves? 44. What is the relative size of electromagnetic waves? 45. How do electromagnetic waves travel through space? 46. What is the relative speed of all electromagnetic waves? 47. How do transparent media affect the speed of electromagnetic waves? 48. What type of wave is an electromagnetic wave? (7-5) 49. What is constructive interference? 50. What is destructive interference? 51. How does interference affect the individual waves? 52. What is sound? 53. What is reflection? 54. What is produced by the reflection of sound waves? 55. How does destructive interference affect sound waves? 56. How does constructive interference affect sound waves? 57. What part of a wave is affected by interference? 58. What part of a sound wave is heard as loudness? 59. What is a standing wave and how is it produced? 60. What is the “Law of Reflection”? 61. How does the Law of Reflection impact light waves? 62. What is the angle of incidence? 63. What is the angle of reflection? 64. What are the characteristics of light waves reflected in plain mirrors? 65. What is diffraction? 66. What is the relationship between wavelength and diffraction? 67. What is the relative size of the openings required to see the diffraction of light? 68. What is an interference pattern and when is it observed? 69. How do light waves interfere? 70. How is the amplitude of a light wave perceived? 71. What are the possible results of light wave interference? 72. What is refraction? 73. What are the conditions required for the refraction of light? 74. How will light rays bend when they strike a prism? 75. What happens to the speed of light when it enters a prism? 76. What happens to the speed of light when it exits a prism? 77. Why does white light produce a rainbow of colors when it exits a prism? 78. What is a converging lens? 79. What is a diverging lens? 80. What is the path of light through a converging lens? 81. What is the path of light through a diverging lens? (7-6) 82. What is the Doppler effect? 83. When does a Doppler shift occur? 84. What is pitch? 85. What is the effect of a wave moving toward an observer (in terms of wavelength and frequency)? 86. What is the effect of a wave moving away from an observer (in terms of wavelength and frequency)? 87. How does the frequency heard by the observer compare to the frequency of the wave originally produced by the source when the wave source is moving toward the observer? 88. How does the frequency heard by the observer compare to the frequency of the wave originally produced by the source when the wave source is moving away from the observer? (7-7)