2022 AMC美国数学竞赛报名中，想要晋级AIME需要多少分才够？
在斯坦福、麻省理工、卡内基梅隆大学等美国顶尖学府申请中，AMC及AIME成绩是学校衡量学生数学能力的指标之一，也是重要的升学筹码。 AMC美国数学思维挑战 美国数学思维挑战由美国数学协会MAA于1950年成立，每年全...
Edexcel A Level Physics:复习笔记6.7 Radians & Angular Displacement
Radians A radian (rad) is defined as: The angle subtended at the centre of a circle by an arc equal in length to the radius of the circle Radians are used whenever describing the angular displaceme...
sic S8 中学生投资挑战赛报名启动，探索金融职业沉浸体验
sic中学生投资挑战赛介绍 SIC (Student Investment Challenge)中学生投资学术活动是CEE(Council for Economic Education)官方认证，由ACME(America China Modern Economics Society)提供学术专业支持，SKT运营的...
2022-2023秋季高质量国际竞赛时间表出炉，报名即将截止！
读海外名校是不少学生的梦想，与高考后的大学录取不同，海外大学在录取学生时还会额外对学生的学习能力进行了解，各种学术学术活动就是这部分最重要的加分项。2022-2023秋季高质量国际学术活动时间表已出炉，汇总...
Edexcel A Level Physics:复习笔记6.6 Energy-Momentum Relation
Deriving the Energy-Momentum Relation The equation for calculating the kinetic energy Ek of a particle m moving at velocity v is given by: The formula for the momentum p of the same particle is: Co...
Edexcel A Level Physics:复习笔记6.5 Elastic & Inelastic Collisions
Elastic & Inelastic Collisions In both collisions and explosions, momentum is always conserved However, kinetic energy might not always be A collision (or explosion) is either: Elastic – if the...
Edexcel A Level Physics:复习笔记6.4 Core Practical 10: Investigating Collisions using ICT
Core Practical 10: Investigating Collisions using ICT Aims of the Experiment To investigate conservation of momentum in two directions Considering if collisions are elastic Constructing a diagram o...
Edexcel A Level Physics:复习笔记6.3 Applying Conservation of Linear Momentum
Applying Conservation of Linear Momentum The principle of conservation of linear momentum states: The total momentum before a collision = the total momentum after a collision provided no external f...
Edexcel A Level Physics:复习笔记6.2 Core Practical 9: Investigating Impulse
Core Practical 9: Investigating Impulse Aims of the Experiment To determine the change in momentum of a trolley due to a force acting on it This is known as the impulse Variables Independent variab...
Edexcel A Level Physics:复习笔记6.1 Impulse
Impulse Force is defined as the rate of change of momentum on a body The change in momentum is defined as the final momentum minus the initial momentum These can be expressed as follows: Def...
2022年10-12月高含金量计算机竞赛汇总
申请美国大学越来越内卷，尤其是名校申请。复盘近三年被TOP20录取的大陆学生，或多或少都有学术活动经历，甚至有家长总结“学术活动是申请TOP20的标配”。虽然不是很准确，但已经足以说明“内卷”程度。 2022年已过大...
Edexcel A Level Physics:复习笔记5.38 Atomic Line Spectra
Atomic Line Spectra An emission line spectrum is produced when: An excited electron in an atom moves from a higher to a lower energy level and emits a photon with an energy corresponding to the dif...
