AQA A Level Physics复习笔记2.2.4 Leptons
Leptons & Antileptons Leptons are a group of fundamental (elementary) particles This means they are not made up of any other particles (no quarks) Leptons interact with other part...
AQA A Level Physics复习笔记2.2.3 Mesons
Pions & The Strong Nuclear Force Pions Pions (π–mesons) can be positive (π+), negative (π–) or neutral (π0) The anti–particle of the positive pion is the negative pion (and vice versa) T...
AQA A Level Physics复习笔记2.2.2 Baryons
Baryon Number The baryon number, B, is the number of baryons in an interaction B depends on whether the particle is a baryon, anti-baryon or neither Baryons have a baryon number B = +1 Anti-...
AQA A Level Physics复习笔记2.1.5 Particles, Antiparticles & Photons
Antimatter The universe is made up of matter particles (protons, neutrons, electrons etc.) All matter particles have antimatter counterparts Antimatter particles are identical to their matte...
AQA A Level Physics复习笔记2.1.4 Alpha & Beta Decay
α & β Decay Equations Alpha Decay Alpha decay is common in large, unstable nuclei with too many protons The decay involves a nucleus emitting an alpha particle and decaying into a differ...
AQA A Level Physics复习笔记2.1.3 Strong Nuclear Force
Strong Nuclear Force In the nucleus, there are electrostatic forces between the protons due to their electric charge and gravitational forces due to their mass Comparatively, gravity is a ve...
AQA A Level Physics复习笔记2.1.2 Nucleon & Proton Number
AZX Notation A nuclide is a group of atoms containing the same number of protons and neutrons For example, 5 atoms of oxygen are all the same nuclide but are 5 separate atoms Atomic s...
英国某考试局承认在GCSE物理试卷中存在重大错误！
今年英国大考乌龙不少，开考不久后，英国某考试局承认在GCSE物理试卷中存在重大错误。 01.出题错误的题目，所有学生都可获得满分 在6月9日星期四举行的GCSE物理高级卷Paper 1中，包含了一个关于电路的问题，然而...
关于IB音乐课程的一系列问题！
了解IBDP课程的同学和家长应该知道IB在选课上有六个大方向，音乐就是包含在Group 6 — The Arts中的一个选项。在官方的选课规则里，Group 6是可以用Group 2, Group 3或Group 4来替换的，在学生不想学习艺术有关的...
