AQA A Level Physics復習筆記5.2.1 Resistivity
Resistivity All materials have some?resistance?to the flow of charge As?free?electrons?move?through a metal wire, they collide with ions which get in their way As a result, they?transfer?som...
IB DP Maths: AA HL復習筆記1.2.3 Solving Exponential Equations
What are exponential equations? An exponential equation is an equation where the unknown is a power In simple cases the solution can be spotted without the use of a calculator For example, In more ...
AQA A Level Physics復習筆記5.1.2 Current–Voltage Characteristics
Ohm's Law Ohm’s law states: For a conductor at a constant temperature, the current through it is proportional to the potential difference across it Constant temperature implies constant resi...
八大藤校托福成績要求，托福100分離藤校還有多遠的距離？
提起美國的頂尖名校，大家第一個想起的應該就是常春藤盟校（Ivy League）了。說起藤校，那可是讓無數學生心馳神往的終極夢校！ 常春藤聯盟全部由美國一流名校組成、也是美國產生羅德學者最多的高校聯盟，那么常春...
AQA A Level Physics復習筆記5.1.1 Basics of Electricity
Electric Current & Potential Difference Electric Current Electric current is defined as?the rate of flow of positive charge?carriers It is measured in units of?amperes (A)?or?amps ...
IB DP Maths: AA HL復習筆記1.2.2 Laws of Logarithms
What are the laws of logarithms? Laws of logarithms allow you to simplify and manipulate expressions involving logarithms The laws of logarithms are equivalent to the?laws of indices These laws are...
AQA A Level Physics復習筆記4.8.2 Required Practical: The Young Modulus
Required Practical: The Young Modulus Aims of the Experiment The aim of the experiment is to measure the Young Modulus of a metal in the form of a wire This requires a clamped horizontal wir...
AQA A Level Physics復習筆記4.8.1 The Young Modulus
The Young Modulus The Young modulus is the measure of the ability of a material to withstand changes in length with an added load This gives information about the stiffness of a material Thi...
想進最新QS前50世界名校，托福要考多少分？
012023?QS 世界大學排名正式發布 北京時間?6 月 9 日，世界高等教育研究機構 QS Quacquarelli Symonds 發布了最新 2023 QS 世界大學（QS World University Rankings?）排名。今年的排名共有 1418 所院校上榜，是?...
AQA A Level Physics復習筆記4.7.6 Energy Conservation
Conservation of Energy in Deformation Loading and Unloading a Metal Wire When a metal wire is loaded with a force and stretched beyond its limit of proportionality, it will undergo?plastic d...
AQA A Level Physics復習筆記4.7.5 Elastic & Plastic Behaviour
Plastic Behaviour Materials can undergo two types of deformations: Elastic deformation When the load is removed, the object?will?return to its original shape This is shown in the elastic reg...
AQA A Level Physics復習筆記4.7.4 Elastic Strain Energy
Elastic Strain Energy Work has to be done to stretch a material Before a material reaches its?elastic limit?(whilst it obeys Hooke's Law), all the work is done is stored as?elastic strain energy Th...
