Description
Book SynopsisTable of ContentsIntroduction ix
Foreword xiii
I Energy Introduction 1
1. Energy Conservation 5
2. Frequency 9
3. Coupled Pendulums 11
4. Sound Waves in Air 14
5. Pressure Waves 17
6. Pitch 20
7. Sound Transmission 23
8. The Effect of Mass on Sound 27
9. Natural Frequency 30
10. Neutral Atom 32
11. Electric Current 36
12. Conductors vs. Insulators 39
13. LED 43
14. Electrochemical Energy 46
15. Polarizing an Insulator 51
16. Polarizing a Conductor 56
17. Electroscope 59
18. Triboelectric Effect 63
19. Adhesion: Charging by Contact 66
20. Light Energy 70
21. Light Transmission 73
22. Light Waves 77
23. Interference in Thin Films 80
24. Concave Lens 84
25. Convex Lens 87
26. Plano-Convex Lens 90
27. Polarized Light 93
28. Filters 96
29. Optical Density 99
30. Refractive Index 103
31. Shadows 108
II Force and Motion Introduction 113
32. Inertia: Newton’s First Law of Motion 115
33. Rotational Inertia 118
34. Acceleration 122
35. Impulse 126
36. Gravity 129
37. Friction 132
38. Air Resistance 135
39. Drag Force 137
40. Air Pressure 141
41. Torque 145
42. Resultant Force of Gravity 148
43. Center of Gravity 151
44. Balance 154
45. Shifting the Center of Gravity 157
46. Action/Reaction 161
47. Normal Force 165
48. Balloon Rocket 169
49. Bounce 173
50. Coandă Effect 177
51. Bernoulli’s Principle 179
52. Pressure Differences 182
53. Balanced Forces 185
54. Unbalanced Forces 188
55. Lift Forces 191
III Simple Machines Introduction 195
56. First-Class Lever 199
57. Equal-Arm Balance 203
58. Second-Class Lever 206
59. Third-Class Lever 210
60. Just for Fun: Third-Class Lever 214
61. Inclined Plane 217
62. Screw 220
63. Wedge 223
64. Moveable Pulley 226
65. Fixed Pulley 229
66. Wheel and Axle 233
IV Magnets Introduction 237
67. Ferromagnetism 240
68. Magnetic Field 244
69. 3-D Magnetic Field 248
70. Mapping Magnetic Fields 251
71. Temporary vs. Permanent Magnets 254
72. Magnetic Permeability 257
73. Compass Rose 260
74. Floating Compass 262
75. Magnetic Declination 265
76. Electromagnet 269
77. Right-Hand Rule 274
78. Demagnetization 277
79. Dipping Needle 279
80. Magnetic Energy 283
Glossary 287
Index 311
