2022-23STS再生元科學天才獎報名已開啟,還有一個月截止報名!
Regeneron Science Talent Search再生元科學天才獎(簡稱:Regeneron STS)是美國最負盛名的科學學術活動,為高中生提供了與專業科學家、國家級評審團交流自己原創性研究的機會。 該學術活動每年有來自全國各地的超...
Regeneron Science Talent Search再生元科學天才獎(簡稱:Regeneron STS)是美國最負盛名的科學學術活動,為高中生提供了與專業科學家、國家級評審團交流自己原創性研究的機會。 該學術活動每年有來自全國各地的超...
AP化學其實說難也不難,說簡單也不簡單,因為化學知識點又多又雜,太煩啦!而且AP化學5分率低,導致有不少同學不太敢選化學……但是對于打算申請生物化學、物理、環境科學相關專業,或者想提升課程難度、證明個人能...
在許多AP科目中,化學的五分率一直不高,AP化學5分容錯率為25%左右,作為大部分理、工科學生必修的一門課程,是很多同學報考的科目。AP化學考試內容有哪些?2023年AP課程考試報名開啟!尤其是社會考生! AP化學課...
Core Practical 4: Investigating Viscosity of a Liquid Aim of the Experiment By allowing small spherical objects of known weight to fall through a fluid until they reach terminal velocity, the?visco...
Stoke's Law Viscous Drag Viscous drag is defined as the frictional force between an object and a?fluid?which opposes the the motion between the object and the fluid Viscous drag is calculated using...
Scholastic Art & Writing Awards?藝術與寫作獎,是全美規模最大、歷史最悠久、聲譽最高的藝術和文學學術活動,旨在尋找7-12年級學生的創意性作品。自1923年創辦以來,藝術與寫作獎為青少年提供了展示創意和...
Upthrust Archimedes' Principle Archimedes’ principle states: An object submerged in a fluid at rest has an upward buoyancy force (upthrust) equal to the weight of the fluid displaced by the object ...
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...
Modelling the Variation of Resistance with Illumination Light can cause a change in conductivity of some semi-conductors When light is absorbed by the material it causes more electrons to be availa...
Modelling the Variation of Resistance with Temperature All materials have some?resistance?to the flow of charge As?free?electrons?move?through a metal wire, they collide with ions which get in thei...
Core Practical 3: Investigating E.M.F. & Internal Resistance Aims of the Experiment The overall aim of the experiment is to investigate the relationship between e.m.f. and internal resistance b...
E.M.F. vs. Terminal Potential Difference Terminal Potential Difference The?terminal potential difference (p.d.)?is the potential difference across the terminals of a cell If there was no internal r...
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