AQA A Level Physics复习笔记6.3.2 Free & Forced Oscillations
Free & Forced Oscillations Free Oscillations Free oscillations occur when there is no transfer of energy to or from the surroundings This happens when an oscillating system is displaced ...
IB DP Maths: AA HL复习笔记1.9.3 Complex Roots of Polynomials
What are complex roots? A quadratic equation can either have two real roots (zeros), a repeated real root or no real roots This depends on the location of the graph of the quadratic with respect to...
Edexcel IGCSE Biology 复习笔记 2.10.7 Synapses
Edexcel IGCSE Biology 复习笔记 2.10.7 Synapses The Role of Neurotransmitters Neurones do not actually come into direct contact with each other Where the dendrites of two neurones meet (to ma...
AQA A Level Physics复习笔记6.3.1 Damping
Damping In practice, all oscillators eventually stop oscillating Their amplitudes decrease rapidly, or gradually This happens due to resistive forces, such as friction or air resistan...
AQA A Level Physics复习笔记6.2.8 Required Practical: Investigating SHM
Required Practical: Investigating SHM Equipment List Resolution of measuring equipment: Stopwatch = 0.01 s Metre Ruler = 1 mm SHM in a Mass-Spring System The overall aim of this exper...
IB DP Maths: AA HL复习笔记1.9.2 Forms of Complex Numbers
How do I write a complex number in modulus-argument (polar) form? How do I multiply complex numbers in modulus-argument (polar) form? The main benefit of writing complex numbers in modulus-argument...
AQA A Level Physics复习笔记6.2.7 Energy in SHM
Energy in SHM During simple harmonic motion, energy is constantly exchanged between two forms: kinetic and potential The potential energy could be in the form of: Gravitational potential ene...
IB DP Maths: AA HL复习笔记1.9.1 Geometry of Complex Numbers
What does addition look like on an Argand diagram? In Cartesian form two complex numbers are added by adding the real and imaginary parts When plotted on an Argand diagram the complex number z1 + ...
IB DP Maths: AA HL复习笔记1.8.3 Introduction to Argand Diagrams
What is the complex plane? The complex plane, sometimes also known as the Argand plane, is a two-dimensional plane on which complex numbers can be represented geometrically It is similar to a two-d...
IB DP Maths: AA HL复习笔记1.8.2 Modulus & Argument
How do I find the modulus of a complex number? The modulus of a complex number is its distance from the origin when plotted on an Argand diagram A modulus is never negative What features should I k...
2022哈佛国际评论写作HAWC夏季赛，报名仅剩8天！
《哈佛国际评论》 学术写作挑战 · 夏季赛 距离报名结束仅剩8天 Harvard International Review Academic Writing Competition适合学生 全球9~12年级中学生，接受2人合作投稿 参赛时间（夏季赛） ● 报名截止：7...
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28年历史、全球具有高认可度的美国计算机奥林匹克活动USACO 2022-2023新赛季备赛已开启！ 编程小白如何入门USACO？ 学习哪种编程语言更好备赛？ 别担心！剑桥学姐、中科院学长为你支招！ 翰林USACO计算机赛事 2...
