2022年夏季A-Level考试成绩即将放榜！出分后应该做什么？
时间已进入8月，各大考试局将会纷纷公布2022年夏季A-Level考试成绩。 面对不同的A-Level考试成绩，接下来又有哪些选择呢？ 三大考试局夏季大考放榜时间 爱德思考试局 A-Level：2022年8月17日下发给考试中心，8月1...
IB DP Physics: SL复习笔记5.2.7 Series & Parallel Circuits
Series & Parallel Circuits The following statements for series and parallel circuits are a consequence of Kirchhoff's first and second law In a series circuit: The current is the same at any po...
IB DP Physics: SL复习笔记5.2.6 Investigating Resistivity
Investigating Resistivity Aims of the Experiment The aim of the experiment is to determine the resistivity of a 2 metre constantan wire Variables: Independent variable = Length, L, of the wire (m) ...
IB DP Physics: SL复习笔记5.2.5 Resistivity
Resistivity Resistance, Length and Cross-Sectional Area The resistance of a sample depends on: The material it is made of The length of the sample The cross-sectional area of the sample The resista...
IB DP Physics: SL复习笔记5.2.4 I-V Characteristics
Ohm's Law Ohm's law states that: For a conductor at a constant temperature, the current through it is proportional to the potential difference across it An electrical component obeys Ohm’s law if i...
IB DP Physics: SL复习笔记5.2.3 Kirchhoff’s Circuit Laws
Kirchhoff's Circuit Laws Kirchhoff's First Law Kirchhoff’s first law states that: The sum of the currents entering a junction always equals the sum of the currents out of the junction A junction is...
IB DP Physics: SL复习笔记5.2.2 Resistance & Resistors
Resistance As electrons move through the metal wire of a circuit (or any other component), they transfer some of their electrical potential energy to the positive ions of the metal Free electrons c...
IB DP Physics: SL复习笔记5.2.1 Circuits
Circuit Diagrams The diagram below shows the various circuit symbols that could be used in circuit diagrams Common circuit symbols Functions of Most Common Components Switch: it turns the circuit o...
CA系统8月1日正式开放，2023美本申请季开启！附CA系统注册申请流程
每年的8月1号，对于美本申请的同学们意义重大的日子：轰轰烈烈的申请季战打响了——Common App开放申请！ Common App简介 Common App全称Common Application，简称CA。Common App申请系统的最大特点是，申请人只需...
IB DP Physics: SL复习笔记5.1.5 Coulomb’s Law
Coulomb's Law Any charged particle generates an electric field This field exerts a force on any other charged particle within range The electrostatic force between two charges is defined by Coulomb...
IB DP Physics: SL复习笔记5.1.4 Electric Fields
Electric Fields An electric field is a region of space in which an electric charge “feels” a force It is a vector field The direction of the electric field is the same as the direction of the elect...
IB DP Physics: SL复习笔记5.1.3 Potential Difference & DC
Potential Difference Potential difference is a measure of the electrical potential energy transferred from an electron as it moves between two points in a conductor Potential difference is work don...
