2022上海國際高中“四校八大”已公布，2023年上海國際學(xué)校春招開啟！
近日，備受留學(xué)家庭矚目的2022年滬上國際高中“四校八大”評選已落下帷幕，名單一出，引起了不少留學(xué)家庭的討論。雖然這份榜單成立時間并不久，但是其中的一些學(xué)校排名變化還是可以給身在上海，并且致力于申請國外...
Edexcel A Level Physics:復(fù)習(xí)筆記7.13 Exponential Discharge in a Capacitor
Exponential Discharge in a Capacitor The Discharge Equation When a capacitor discharges through a resistor, the charge stored on it decreases?exponentially The amount of charge remaining on the cap...
Edexcel A Level Physics:復(fù)習(xí)筆記7.12 Core Practical 11: Investigating Capacitor Charge & Discharge
Required Practical: Charging & Discharging Capacitors Aim of the Experiment The overall aim of this experiment is to calculate the capacitance of a capacitor. This is just one example of how th...
Edexcel A Level Physics:復(fù)習(xí)筆記7.11 Charge & Discharge Curves
Charge & Discharge Curves Charging Curves Capacitors are charged by a?power supply?(e.g. a battery) When charging, electrons are 'pulled' from the plate connected to the positive terminal of th...
2022BPHO競賽時間已公布，BPHO競賽含金量如何？
說到物理領(lǐng)域的學(xué)術(shù)活動“大哥大”，美國有Physics Bowl“物理碗”，英國則有BPHO英國物理奧林匹克學(xué)術(shù)活動。如果你對物理感興趣，想通過學(xué)術(shù)活動為自己的申請加分，那么各位物理迷，一定也不能錯過BPhO哦！ BPhO英國...
Edexcel A Level Physics:復(fù)習(xí)筆記7.10 Energy Stored by a Capacitor
Energy Stored by a Capacitor When charging a capacitor, the power supply 'pushes' electrons to one of the metal plates It therefore does?work?on the electrons and?electrical energy?becomes stored o...
2022-2023年熱門競賽項目有哪些？爬藤Buff怎么加？
2022-2023年熱門學(xué)術(shù)活動項目有哪些？值得報名嗎？要怎么準(zhǔn)備？小編總結(jié)了幾大熱門學(xué)術(shù)活動，盡早報名還可享早鳥報名優(yōu)惠，提前選擇隊友，為“沖獎爬藤”做準(zhǔn)備。 NEC全美經(jīng)濟學(xué)挑戰(zhàn) National Economics Challenge...
2022 BPHO物理競賽報名已開啟，BPHO競賽難度如何？
在標(biāo)化成績不具有最佳競爭力的時候，要靠什么脫穎而出呢？對于想要申請牛劍G5等等名校的學(xué)生來說，能在BPhO學(xué)術(shù)活動中拿到獎項，無疑就是證明物理類學(xué)術(shù)能力的有效途徑，且能夠幫助同學(xué)們打下很好的牛劍G5筆面試...
Edexcel A Level Physics:復(fù)習(xí)筆記7.9 Capacitance
Capacitance Capacitors are electrical devices used to store energy in electronic circuits, commonly for a backup release of energy if the power fails Capacitors do this by storing electric?charge, ...
2023夏季A-Level/GCSE大考計劃公布，高分比例將整體下降！
轉(zhuǎn)眼開學(xué)已有一個多月，國內(nèi)各省市陸續(xù)發(fā)布新學(xué)期階段學(xué)習(xí)/考試等政策，和體制內(nèi)一樣，英國教育部也在“黃金九十月”發(fā)布GCSE最新政策。 9月下旬，英國教育部(Department of Education)和考試監(jiān)管機構(gòu)Ofqual(The Of...
Edexcel A Level Physics:復(fù)習(xí)筆記7.8 Representing Radial & Uniform Electric Fields
Using Field Lines & Equipotential Diagrams The direction of electric fields is represented by?electric?field?lines Electric field lines are directed from positive to negative Therefore, the fie...
Edexcel A Level Physics:復(fù)習(xí)筆記7.7 Electric Potential for a Radial Field
Electric Potential for a Radial Field Electric Potential Energy In order to move a positive charge closer to another positive charge, work must be done to overcome the force of repulsion between th...
