Physics III

Tartalom

Contents
VIBRATION AND WAVES 3
1. The Origin of Vibration 3
2. Velocity and Acceleration of Vibration 5
3. Exercises on Vibrating Motion 7
4. The Pendulum 8
5. Wave Motion 11
6. Interference of Waves 14
7. Standing Waves 17
8. Standing Waves (continued) 19
9. Soundwaves 21
10. The String 24
11. Resonance 26
12. Acoustic Vibration 28
13. Summary — Test 29
IHEORY OF MAGNETISM 30
4. Basic Magnetic Phenomena 30
5. Coulomb's Law for Magnetism 33
6. Exercises on Coulomb's Law for Magnetism 35
7. Magnetic Field
8. Some Special Cases of Magnetic Fields
207
ELECTROSTATICS 41
19. The Basic Electric Phenomena 41
20. Coulomb's Law for Electricity 43
21. Electric Polarization 45
22. The Electric Field 48
23. Work Done in the Electric Field 51
24. Equipotential Surfaces 54
25. The Condenser 57
26. Condensers Connected 60
27. Exercises 61
28. Summary — Test 62
ELECTRIC CURRENT 63
29. The Origin and Measurement of Current 63
30. Ohm's Law 66
31. Specific Resistance 68
32. Exercises 70
33. Resistances Connected 71
34. Exercises 73
35. Power and Work Done 76
36. Utilization of the Current's Calorific Effect 77
37. Summary — Test 79
ELECTROLYTES.
80
Ir ,
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38. Electrolysis 80
39. Faraday's Law 83
40. Exercises 84
41. Galvanic Cells 86
42. Data of the Galvanic Cell 89
43. Exercises 91
44. Summary — Test 91
208
THE MAGNETIC EFFECT OF CURRENT 92
45. The Basic Phenomenon 92
46. Quantitative Law of Current's Magnetic Effect 94
47. Current Along a Circuit 96
48. The Explanation for Magnetism 98
49. The Magnetic Behaviour of Matter 100
50. Electromagnets ^03
51. Exercises 105
52. Magnetic Field Inside a Very Long Coil 108
53. Flux Ill
54. Inductance H^
55. Summary —Test 114
INDUCTION 115
56. The Basic Phenomenon 115
57. The Direction-Rule for Induced Current 117
58. The Quantitative Law of Induction 120
59. Exercises 123
60. Self-inductance 124
61. Direct Current Machines 127
62. Alternating Current Machines 129
63. The Transformer 132
64. The Thermionic Valve 135
65. Summary — Test 137
ALTERNATING CURRENT, ELECTROMAGNETIC
VIBRATION AND WAVE 138
66. Alternating Voltage on an Ohmic Resistance 138
€7. Alternating Voltage on a Self-induction Coil 140
€8. Alternating Voltage on an Ohmic Resistance and Self-induction
Coil Connected in Series 142
>69. Alternating Voltage on a Condenser 145
209
70. Exercises 147
71. Parallel Oscillating Circuits 148
72. Feed-back 150
73. Exercises Related to the Oscillating Circuit 152
74. Electromagnetic Waves 154
75. The Wireless 156
76. Types of Electromagnetic Waves 158
77. Summary — Test 159
THE LIGHT
160



I. I
78. The Light Ray and the Formation of the Image 160
79. Refraction
80. Refraction (continued) ^^^
81. Lenses
82. Exercises
83. Exercises (continued)
84. The Dispersion of Light
85. Lightwaves
86. Optical Grating
87. The Rules of Mixed Colours ^
88. Spectral Analysis 1^1
89. Types of Spectra
90. Explanation of Refraction by the Theory of Waves 184
91. Polarized Light
190
92. Photons
93. Photons (continued ; practicing exercises)
94. Photoelectric Phenomena
95. Summary — Test
196
SUMMARY
197
. Mass and Energy l^Jj
96
97. The Electron 199
Vocabulary 203 - 210

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