5.1.9 Archives - How Engineering Works

5.1.9

1. What is electromagnetic momentum?
2. What are applications of EM waves in daily life?
3. What is dispersion in optical fibers?
4. What is optical fiber attenuation?
5. What are applications of EM waves in GPS?
6. What is EM interference (EMI)?
7. What is electromagnetic compatibility (EMC)?
8. How does Huygens’ principle explain refraction?
9. What is Huygens’ principle?
10. What is EM wave diffraction?
11. What is EM wave interference?
12. What is the average energy stored in EM waves?
13. How does amplitude affect energy?
14. What is energy density in EM waves?
15. What is radiation pressure?
16. What is power flow in EM waves?
17. What is intensity of an EM wave?
18. What does the direction of the Poynting vector represent?
19. What is Poynting vector?
20. What is energy transport in an EM wave?
21. What is electromagnetic radiation hazard?
22. How is ionizing radiation harmful?
23. What is radiation shielding?
24. Why are gamma rays dangerous?
25. What are uses of gamma rays?
26. What are gamma rays?
27. What are uses of X-rays in medicine?
28. How are X-rays produced?
29. What are harmful effects of UV radiation?
30. What are UV rays used for?
31. What causes the sky to appear blue?
32. What is the Tyndall effect?
33. What is scattering of light?
34. Why does a prism split white light?
35. What is visible spectrum?
36. How is infrared used in night vision?
37. What are applications of infrared radiation?
38. What is microwave oven working principle?
39. What are common uses of microwaves?
40. What are common uses of radio waves?
41. What is fiber optic communication?
42. Why are microwaves used in satellite communication?
43. What is remote sensing?
44. What is radar?
45. What is antenna gain?
46. What is bandwidth in communication?
47. What is digital modulation?
48. What is FM (Frequency Modulation)?
49. What is AM (Amplitude Modulation)?
50. What is modulation?
51. What is space wave propagation?
52. What is ground wave propagation?
53. What is sky wave propagation?
54. Why can radio waves travel long distances?
55. What is wave propagation in the ionosphere?
56. How do EM waves propagate in a medium?
57. How do EM waves propagate in vacuum?
58. What is radiation from an antenna?
59. What is antenna?
60. How are EM waves generated?
61. How do EM waves transfer energy?
62. What is attenuation?
63. What is absorption of EM waves?
64. What is dispersion?
65. What is interference?
66. What is diffraction?
67. What is refraction of EM waves?
68. What is reflection of EM waves?
69. What is polarization of EM waves?
70. Are EM waves transverse?
71. What is the wavelength range of visible light?
72. What are gamma rays?
73. What are X-rays?
74. What is ultraviolet radiation?
75. What is visible light?
76. What is infrared radiation?
77. What are microwaves?
78. What are radio waves?
79. What is the order of EM waves by frequency?
80. What is electromagnetic spectrum?
81. How do Maxwell’s equations relate to the speed of light?
82. What did Maxwell predict about EM waves?
83. Why are Maxwell’s equations important?
84. What is displacement current?
85. How did Maxwell unify electricity and magnetism?
86. What is Ampere-Maxwell law?
87. What is Faraday’s law?
88. State Gauss’ law for magnetism.
89. State Gauss’ law for electric fields.
90. What are Maxwell’s equations?
91. What is the wave equation for electromagnetic waves?
92. What is the relationship between electric and magnetic fields in an EM wave?
93. What medium is needed for electromagnetic wave propagation?
94. How do EM waves travel in space?
95. What are oscillating electric and magnetic fields?
96. What is the source of electromagnetic waves?
97. What is the nature of electromagnetic waves—transverse or longitudinal?
98. What is the speed of electromagnetic waves in vacuum?
99. Who discovered electromagnetic waves?
100. What are electromagnetic waves?