BMO英國(guó)數(shù)學(xué)奧賽對(duì)中國(guó)學(xué)生開放，可直接報(bào)名！
重大好消息！ 中國(guó)學(xué)生可以直接參加BMO了！ 在此之前，BMO是讓我們“望眼欲穿”的賽事。想要參加BMO，必須先參加SMC（Senior Maths Challenge）并取得優(yōu)異成績(jī)，而SMC不接受個(gè)人報(bào)名，必須由英國(guó)教育體制的學(xué)校統(tǒng)一...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.4 Pressure in Liquids
Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.4 Pressure in Liquids Pressure in Liquids A fluid is either a?liquid?or a?gas When an object is immersed in a fluid, the fluid will exert pressure, squeezi...
IB DP Maths: AI HL復(fù)習(xí)筆記1.1.2 Approximation & Estimation
Approximating Values How do I know what to round my answer to? Unless otherwise told, always round your answers to?3 significant figures?(3 s.f.) The first non-zero digit is the first?significant?d...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.3 Pressure
Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.3 Pressure Pressure Pressure?is defined as The concentration?of a force or the force per unit area For example, when a drawing pin is pushed ...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.2 Core Practical: Determining Density
Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.2 Core Practical: Determining Density Core Practical 9: Determining Density Equipment List Resolution?of measuring equipment: 30 cm ruler = 1 mm Vernier ca...
IB DP Maths: AI HL復(fù)習(xí)筆記1.1.1 Standard Form
Standard Form Standard form?(sometimes called?scientific notation?or?standard index form) gives us a way of writing very big and very small numbers using powers of 10. Why use standard form? Some n...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.1 Density
Edexcel IGCSE Physics 復(fù)習(xí)筆記 5.1.1 Density Density Density is defined as: The mass per unit volume of a material Objects made from?low density?materials typically have a?low ...
美國(guó)留學(xué)一年費(fèi)用需要多少？斯坦福、萊斯、NYU學(xué)生曬出留學(xué)賬單！
美國(guó)留學(xué)一年一百萬(wàn)正常嗎？ 知乎上這個(gè)瀏覽量近40萬(wàn)的熱門提問(wèn) 引起了美本留學(xué)黨的激烈討論： “表姐在美國(guó)加州大學(xué)戴維斯分校讀書，每年花銷100w左右，有時(shí)甚至達(dá)到120w。” “我問(wèn)了身邊去美國(guó)留學(xué)的朋友，表示一...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.7 Comparing Energy Resources
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.7 Comparing Energy Resources Comparing Energy Resources Each energy resource has various advantages and disadvantages associated with it A?renewable?energy...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.6 Energy Resources
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.6 Energy Resources Energy Resources Energy resources are large stores of energy that can be transferred from one form into?electrical energy?that can be us...
IB DP Maths: AI SL復(fù)習(xí)筆記5.2.3 Applications of Integration
Finding the Constant of Integration What is the constant of integration? When finding an?anti-derivative?there is a constant term to consider In terms of?graphing?an?anti-derivative,?there are endl...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.5 Power
Edexcel IGCSE Physics 復(fù)習(xí)筆記 4.2.5 Power Power Machines, such as car engines, transfer energy from one type to another every second The rate of this energy transfer, or the rate of work do...
