AQA A Level Physics复习笔记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复习笔记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复习笔记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...
八大藤校托福成绩要求，托福100分离藤校还有多远的距离？
提起美国的顶尖名校，大家第一个想起的应该就是常春藤盟校（Ivy League）了。说起藤校，那可是让无数学生心驰神往的终极梦校！ 常春藤联盟全部由美国一流名校组成、也是美国产生罗德学者最多的高校联盟，那么常春...
AQA A Level Physics复习笔记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复习笔记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复习笔记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复习笔记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...
想进最新QS前50世界名校，托福要考多少分？
012023 QS 世界大学排名正式发布 北京时间 6 月 9 日，世界高等教育研究机构 QS Quacquarelli Symonds 发布了最新 2023 QS 世界大学（QS World University Rankings®）排名。今年的排名共有 1418 所院校上榜，是 ...
