11-1 Classifications of Magnetic Media Magnetic Permeability 磁介质的分类磁导率 11-2 Molecular Theory of Paramagnetism& Diamagnetism顺磁质和抗磁质磁化的分子理论 11-3 Ampere's Law in the magnetic matter and magnetic intensity H 磁介质中的安培环路定理和磁场强度H 11-4 Ferromagnetism铁磁质

11-1 Classifications of Magnetic Media Magnetic Permeability磁介质的分类磁导率 11-2 Molecular Theory of Paramagnetism& Diamagnetism顺磁质和抗磁质磁化的分子理论 11-3 Ampere's Law in the magnetic matter and magnetic intensity H磁介质中的安培环路定理和磁场强度H 11-4 Ferromagnetism铁磁质

§ 12-1 Nonelectrostatic Force Source & Electromotive Force 非静电力 电源 电动势 § 12-2 Faraday’s Law of Induction 电磁感应定律 § 12-3 Motional Electromotive Force 动生电动势 § 12-4 Induced Electric Field 感生电动势 涡旋电场 § 12-5 Self-induction & Mutual-induction 自感和互感 § 12-6 Energy of the Magnetic Field 磁场的能量

§14-4 Damped Vibration& Forced Vibration Resonance 阻尼振动 受迫振动 共振 §14-5 Superposition of two SHM with same Frequency in same Direction 同方向同頻率的简谐振动的合成 §14-6 Superposition of two Perpendicular SHM 相互垂直的简谐振动的合成 §14-3 The Energy of SHM 简谐振动的能量 §14-2 Amplitude Period Frequency & Phase 简谐振动的振幅, 周期，頻率和位相 §14-1 Simple Harmonic Motion (SHM) 简谐振动

20.1 The magnetic field and its application 1. The magnetic field and its features Gravitational field FG=mg -gravitational force caused by mass Electric field =gE -electric force caused by electric charge Magnetic field--? While the magnetic field has similarities to the other fields, it also has some unique features that distinguish it from the others

广义相对论简介 爱因斯坦为什么要创立广义相对论? 狭义相对论只适用于惯性系,即惯性系比非惯性系 “优越”,所反映的自然规律的对称性不完善 狭义相对论的洛仑兹变换不能保持引力形式不变, 即狭义相对论不能包容万有引力定律

The zeroth law of thermodynamics: The expression of the fundamental experiment fact. The first law of thermodynamics: The a statement of conservation of energy for pure thermodynamic system. The second law of thermodynamics: Why we need the second law of thermodynamics?

I．Choose the Correct Answer 1. A disturbance can be written x b xt b t a y(x,t) (e e e ) 2 2 −( / ) 2 / − = . This disturbance is （ D ） (A) Not a traveling wave. (B) A traveling wave with speed v = a. (C) A traveling wave with speed v = a/b. (D) A traveling wave with speed v = b

6.1 炔烃的结构 命名 和物理性质 Structure, Nomenclature, and Physical Properties of Alkyne

第一节 土的形成 1.1 The Formation of soils 第二节 土的三相组成 1.2 The Three-Phase Composition of soils 第三节 土的物理状态 1.3 The Physical State of Soils 第四节 土的结构 1.4 The structure of soils 第五节 土的工程分类 1.5The engineering classification of soils 第六节 土的压实性 1.6 Soil Compaction