IB DP Physics: HL复习笔记5.4.1 Magnetic Fields
Magnetic Fields Magnetic Field Definition A magnetic field is a field of force that is created either by: Moving electric charge Permanent magnets Permanent magnets are materials that produce a mag...
IB DP Physics: HL复习笔记5.3.4 Electromotive Force & Internal Resistance
Electromotive Force When charge passes through a power supply such as a battery, it gains electrical energy The electromotive force (e.m.f) is the amount of chemical energy converted to electrical ...
学习了A-Level课程，是否可以申请美国的大学呢？
对于许多考虑更换国际赛道的同学和家长，有一个问题备受关注：学习了A-Level课程，是否可以申请美国的大学呢？ 答案显然是可以的。A-Level虽然是源自英国的课程，但美国大学也是接受并承认其考试成绩的。美国大学...
IB DP Physics: HL复习笔记5.3.3 Terminal Potential Difference
Terminal Potential Difference Defining Potential Difference A cell makes one end of the circuit positive and the other negative. This sets up a potential difference V across the circuit The potenti...
IB DP Physics: HL复习笔记5.3.2 Investigating Electric Cells
Investigating Electric Cells Zinc-carbon cells Zinc-carbon cells are the most common type of primary cells, consisting of a zinc casing which acts as the negative electrode a paste of ammonium chlo...
IB DP Physics: HL复习笔记5.3.1 Primary & Secondary Cells
Primary & Secondary Cells Simple Cells A simple cell is a source of electrical energy The simplest design consists of two electrodes made from metals of different reactivity immersed in an elec...
IB DP Physics: HL复习笔记5.2.9 Potential Divider Circuits
Potential Divider Circuits When two resistors are connected in series, through Kirchhoff’s Second Law, the potential difference across the power source is divided between them Potential dividers ar...
IB DP Physics: HL复习笔记5.2.8 Heating Effect of Current
Heating Effect of Current When electricity passes through a component, such as a resistor, some of the electrical energy is turned into heat, therefore, increasing its temperature The heat that is ...
IB DP Physics: HL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...
