《奇妙的力学世界》求取 ⇩

CONTENTS1

Lesson 1 Galileo（伽里略）1

Lesson 2 Speed（速率）8

Lesson 3 Velocity（速度）15

Lesson 4 Acceleration（加速度）21

Lesson 5 How Do Scientists Explain Motion?（科学家是如何解释运动的？）27

Lesson 6 Sir Isaac Newton（艾萨克·牛顿爵士）35

Lesson 7 Newton's First Law of Motion（牛顿第一定律）40

Lesson 8 Newton's Second Law of Motion（牛顿第二定律）47

Lesson 9 Newton's Third Law of Motion（牛顿第三定律）54

Lesson 10 Gravitation（万有引力）60

Lesson 11 Mass（质量）66

Lesson 12 Weight（重量）72

Lesson 13 Newton's Laws and Satellitas （牛顿定律与人造卫星）79

Lesson 14 The Five Fundamental Machines （五种基本机械）89

Lesson 15 The Lever （杠杆）95

Lesson 16 The Wheel and Axle（轮轴）102

Lesson 17 The Pulley（滑轮）108

Lesson 18 The Inclined Plane and Wedge （斜面和楔子）114

Lesson 19 The Screw（螺旋）122

Lesson 20 Archimedes（阿基米德）128

Lesson 21 Machines That Imitate Men （机器人）135

Lesson 22 What Is Energy？（能是什么？）142

Lesson 23 What Is Work？ （功是什么？）147

Lesson 24 Heat（热）152

Lesson 25 Other Forms of Energy （其他能量形式）157

Lesson 26 The Atmospheric Pressure （大气压力）163

Lesson 27 Temperature（温度）169

Lesson 28 Power（功率）174

Lesson 29 Our Fossil Fuel（我们的矿物燃料）180

Lesson 30 Solar Energy（太阳能）187

Lesson 31 Geothermal Energy（地热能）193

Lesson 32 New Fuels（新的燃料）200

Lesson 33 Pollution（污染）208

Lesson 34 What Is Matter？（物质是什么？）214

Lesson 35 States of Matter（物质的形态）219

Lesson 36 Gases （气体）224

Lesson 37 Liquids （液体）231

Lesson 38 Expansion and Contraction of Solids（固体的膨胀和收缩）236

Lesson 39 Change of State of Matter （物态的变化）241

Lesson 40 Atoms and Molecules （原子和分子）247

Appendix 1 Key to the Exercises （附录1．练习答案）254

Appendix 2 Translations （附录2．参考译文）263