AQA A Level Physics复习笔记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复习笔记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复习笔记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...
AQA A Level Physics复习笔记4.7.3 Stress & Strain
Tensile Stress & Strain Opposite forces can deform an object If the forces stretch the object, then they are tensile forces Tensile forces lead to the two properties of materials known a...
AQA A Level Physics复习笔记4.7.2 Hooke's Law
Hooke's Law When a force F is added to the bottom of a vertical metal wire of length L, the wire stretches A material obeys Hooke’s Law if: The extension of the material is directly proporti...
A-level中文考试到底要不要考？
A-level中文考试到底要不要考？在英国，A-level Chinese（中文）成为越来越受欢迎的一个学科。而国内也是同样，很多精力够用的小伙伴，都会顺便考一考A-level中文。 关于A-level 中文我们需要了解哪些？ 不是每个...
2023 CAIE alevel经济paper1考点！
据说2022年秋季alevel考试会参考2023年CAIE新考纲样卷？ 不知道真假，宁可信其有。来看一下经济样卷选择题部分的考点，该样卷全部题目都选自过往真题，主要参考下知识点分布。 注意：斜体为以往不常考，下划线为...
与高考相比，Alevel课程体系有手就行？
近年来，中国高考正在经历变化，让学生拥有更大选择范围，目标全面提升学生素质。高考后咨询A-level一年制课程的学生越来越多，虽然会比两年制紧张，但完全可以实现一年后出国。也有国内高中同学双轨制学习，学习...
AQA A Level Physics复习笔记4.7.1 Density
Density Density is the mass per unit volume of an object Objects made from low-density materials typically have a lower mass For example, a balloon is less dense than a small bar of lead des...
