2022年夏季A-Level考試成績即將放榜！出分后應該做什么？
時間已進入8月，各大考試局將會紛紛公布2022年夏季A-Level考試成績。 面對不同的A-Level考試成績，接下來又有哪些選擇呢？ 三大考試局夏季大考放榜時間 愛德思考試局 A-Level：2022年8月17日下發給考試中心，8月1...
IB DP Physics: SL復習筆記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復習筆記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復習筆記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復習筆記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復習筆記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復習筆記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復習筆記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...
IB DP Physics: SL復習筆記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...
