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作為英國學生的大學入學考試課程，同學們經常會在選課時犯了選擇困難癥，因為大家都會考慮這個學科的前景、現狀以及在學界的受重視程度等等…… 想要申請英國大學比較熱門的專業，小伙伴們還需要根據要求學...
正值申請季，很多小伙伴比較關注G5大學的歷年錄取情況，抓住數據透露的細節，可以讓規劃更清晰。最近帝國理工公布了近5年錄取數據，今天就一起來看看中國留學生的申請錄取趨勢~ 帝國理工QS排名常年穩居前十，近五...
POE（Portfolio of Evidence）的起源是今年華東地區部分學校因為疫情，無法組織大規模考試， 采用POE的方式由考試中心評估的方式出分。今年上海等城市因疫情影響部分學校IGCSE/ALEVEL考試為POE模式。CAIE考試局20...
The Principle of Conservation of Linear Momentum The principle of conservation of momentum states that in a?closed system, the total momentum before an event is equal to the total momentum after th...
