Modulus-Argument Form The complex number is said to be in Cartesian form. There are, however, other ways to write a complex number, such as in modulus-argument (polar) form. How do I write a compl...
Argand Diagrams - Basics What is an Argand diagram? An Argand diagram is a geometrical way to represent complex numbers as either a point or a vector in two-dimensional space We can represent the c...
Solving Quadratic Equations with Complex Roots What are complex roots? Complex numbers provide solutions for quadratic equations which have no real roots Complex roots occur when solving a quadrat...
Cartesian Form of Complex Numbers Complex numbers are a set of numbers which contain both a real part and an imaginary part. The set of complex numbers is denoted as . What is an imaginary number? ...
前段时间，韩国、新加坡更新了2023年AP大考的安排。随着9月开学，中国大陆以及中国香港各学校2023年AP大考的报名也将陆续开始。眼下报考时间即将截止，在报考之前同学们要了解一下2023年AP大考的变化，以便提前准...
2022丘成桐中学科学奖半决赛晋级名单 2022丘成桐中学科学奖各赛区报名及提交论文已于9月全部结束。经过各分赛区组委会为期一个月的3轮的评审，半决赛晋级名单陆续评出，公布如下。 2022丘成桐中学科学国内北部赛...
Damping & Plastic Deformation Damping an oscillator affects its amplitude of oscillation: When damping is increased the amplitude decreased damping and amplitude are inversely proportional to e...
Resonance Graphs A graph of driving frequency f against amplitude A of oscillations is called a resonance curve. It has the following key features: When f < f0, the amplitude of oscillations inc...
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 and the...
Damped & Undamped Oscillating Systems In practice, all oscillators eventually stop oscillating Their amplitudes decrease rapidly, or gradually This happens due to resistive forces, such ...
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Core Practical 16: Investigating Resonance Aim of the Experiment Determine the value of an unknown mass by a graphical method by using the resonant frequencies of the oscillation of known masses Va...
