The Principle of Conservation of Energy The principle of conservation of energy is a law of Physics which always applies to a closed system To apply conservation of energy, heat losses are usually ...
Gravitational Potential Energy Gravitational potential energy (usually written Ep, but sometimes GPE) is energy stored in a mass due to its position in a gravitational field If a mass is lif...
Kinetic Energy Kinetic energy (usually written Ek and sometimes KE) is the energy an object has due to its motion (or velocity) The faster an object moves, the greater its kinetic energy &nb...
Work Work is defined as The amount of energy transferred when an external force causes an object to move over a certain distance If the force is parallel to the direction of the object's dis...
Centre of Gravity The centre of gravity (sometimes called the centre of mass) of an object is the point through which all the weight can be considered to act The position of the centre of gr...
Calculating the Moment of a Force A moment is the turning effect of a force Moments occur when forces cause objects to rotate about some pivot The moment of a force is given by Moment (N m) ...
A-Level作为英国学生的大学入学考试课程，同学们经常会在选课时犯了选择困难症，因为大家都会考虑这个学科的前景、现状以及在学界的受重视程度等等…… 想要申请英国大学比较热门的专业，小伙伴们还需要根据要求学...
正值申请季，很多小伙伴比较关注G5大学的历年录取情况，抓住数据透露的细节，可以让规划更清晰。最近帝国理工公布了近5年录取数据，今天就一起来看看中国留学生的申请录取趋势~ 帝国理工QS排名常年稳居前十，近五...
POE（Portfolio of Evidence）的起源是今年华东地区部分学校因为疫情，无法组织大规模考试， 采用POE的方式由考试中心评估的方式出分。今年上海等城市因疫情影响部分学校IGCSE/ALEVEL考试为POE模式。CAIE考试局20...
