PROJECT 实验项目 1
SECTION 1：ELECTROMAGNETIC FORCES 第一部分 电磁力 1
1-1 Attractive Force Relationship of wire turns to attraction in electromagnet 吸引力 线圈圈数和电磁铁吸引力的关系 2
1-2 Filed Under Current Magnetic lines of flux and magnet＇s DC polarity 在电流的引导下排列 磁力线及磁铁的直流极性 6
1-3 Short Stop in a Magnetic Field Electrical insulators not necessarily magnetic Insulators 磁场的中断 电绝缘体不一定是磁绝缘体 10
1-4 Rust in Pieces Comparing magnetic properties of iron and rust锈迹斑斑 铁和铁锈的磁性比较 13
1-5 Directional Flux Inducing current using south or north magnetic poles有方向的磁力线 利用磁南极或磁北极来感应电流 16
1-6 Stroke of Good Luck Inducing magnetism in iron by stroking with permanent magnet划出好运 铁在永久磁铁划过时会感应出磁 18
1-7 Don＇t Lose Your Cool Magnetism loss due to heat 不要失去冷静 加热会丢失磁性 22
SECTION 2：STATIC ELECTRICITY 第二部分 静电 25
2-1 Too Close for Comfort Static electricity on TV screens 离得太近并不舒适 电视机屏幕上的静电 27
2-2 Snap，Crackle，Pop Detecting approaching thunderstorms喀嚓，劈啪，砰叭 探测即将来临的大雷雨 29
2-3 Too“Clothes ”for Comfort Static electricity in clothing material 衣物也会引起麻烦 衣料中的静电 33
2-4 Grounded Again Removing static charges in clothing by grounding 再次接地 通过接地来消除衣物上的静电 36
2-5 Tea for Two Electrostatc generation（Van de Graaff generator） 给两个人沏茶 静电的产生（范德格拉夫静电发生器） 39
2-6 Static North Pole Magnetic properties of static electrons 静电北极 静电子的磁性能 42
SECTION 3：CURRENT FLOW 第三部分 电流 45
3-1 Volts and Amps Understanding the concepts of voltage and amperage 伏特和安培 了解伏特和安培的概念 47
3-2 Wet-Cell Battery Testing electrolytes to make wet-cell batteries 湿电池 对制作湿电池的电解液进行测试 49
3-3 After the Warm-Up The effect of temperature on battery life 加温之后 温度对电池寿命的影响 52
3-4 Keeps On Keeping On Comparing popular brands of batteries 继续坚持下去 对常用品牌的电池进行比较 57
3-5 Live-Wire Wood Insulators become conductors under certain conditions 能导电的木头 在一定条件下绝缘体可以变成导体 60
3-6 The Match Box Series circuit becomes teaching aid for other subjects 知识竞赛显示箱 串联电路可成为其他学科的教具 63
3-7 Current Event Fuses protect from excess current flow 电流事故 保险丝可以防止电流过大 69
SECTION 4：ELECTROMECHANICAL DEVICES，MOTORS 第四部分 电动机械装置，电动机 73
4-1 All Coiled Up Effect on current flow by magnet moving past a con 密绕线圈 磁铁移过线圈对电流的影响 74
4-2 Marvelous Magnetic Measurer Detecting magnetism 神奇的磁测量仪 磁性的测量 77
4-3 Currently Set Up Magnetic induction 通用实验装置 电磁感应 80
4-4 Double Throw to Second Base Relays to remotely control other circuits 双掷二级控制 遥控其他电路的继电器 84
4-5 Motoring Your Generator Motors are the opposite of generators 用电动机驱动你的发电机 电动机是发电机的反向运用 88
SECTION 5：PESISTANCE AND CAPACITANCE 第五部分 电阻和电容 91
5-1 Wired to Melt Resistance in wire can produce heat 接上导线来融化蜡烛 导线中的电阻可以产生热 92
5-2 Two Kinds of Sharing Comparing resistors in series and parallel 两种分配 电阻器串联和并联的比较 96
5-3 Brown Out Power loss in electric transmission lines 灯火管制 输电线路上的电能损耗 100
5-4 Secret Resistance Determining resistance by indirect measurement and computation 神秘的电阻 通过间接测量和计算来确定电阻值 104
5-5 Red Hot Stop Thermistor resistors 赤热便停机 热敏电阻器 107
5-6 Divide and Conquer Voltage divider circuits 分而治之 分压电路 110
5-7 Charge It！Charging time in a resistive/capacitive circuit 给电容器充电！电阻/电容性电路的充电时间 114
SECTION 6：CENERATING ELECTRICITY 第六部分 发电 119
6-1 A Salt and Battery Determining peak power from wet-cell battery as load is applied 盐和电池 测定加有负载时湿电池的峰值功率 121
6-2 Idaho Electric Company Electrolytes in potatoes 爱达荷电力公司 土豆中的电解液 125
6-3 Lighten-Up Solar cells 亮起来 太阳能电池 128
6-4 Niagara Sink Hydroelectric power 尼亚加拉水池 水力发电 131
6-5 Threshold of Light Using calculator＇s solar cells to measure light 光的门限值 用计算器的太阳能电池来测量光 134
6-6 Meter Made Periods of peak use of electric power in the home 电表的构成 家庭用电的高峰期 137
SECTION 7：SOLID-STATE ELECTRONICS 第七部分 固体电子学 143
7-1 One-Way Street Using LEDs to prove diodes establish directional current flow when AC source is supplied 单行道 用发光二极管证明当用交流电源供电时二极管可建立单向电流 145
7-2 Cut the Sine in Half Speaker can detect diode＇s ability to change wave form 把正弦波切去一半 扬声器可以检测到二极管改变波形的能力 150
7-3 Blinky Working with an integrated circuit oscillator 闪烁 用集成电路制作振荡器 155
7-4 Yes or No AND and OR computer logic circuits 是或非 计算机“与”和“或”逻辑电路 160
7-5 Repulsive Attraction Using sound waves to repel insect pests 令人讨厌的吸引 利用声波来驱赶害虫 165
SECTION 8：RADIO-FREQUENCY ENERGY 第八部分 射频能量 169
8-1 Interference：Foiled Again！Atmospheric radio frequency noise gene-rated by electrical devices around the home 干扰：再次生效！ 家庭各处电气设备所产生的空间射频噪声 171
8-2 Only Way Out Limiting the direction of radio-frequency radiation 惟一的输出口 限制射频辐射的方向 174
8-3 Out of Sight Affecting the range of radio waves 视野以外 对无线电波范围的影响 177
APPENDIX：SCHEMATIC SYMBOLS FOR COMMON ELECTRONIC COMPONENTS 附录：常用电子元器件的电路符号 180
GLOSSARY 科学术语 182