IB DP Maths: AI SL复习笔记3.1.2 Arcs & Sectors
Length of an Arc What is an arc? An arc is a part of the circumference of a circle It is easiest to think of it as the crust of a single slice of pizza The length of an arc depends of the size of t...
IB DP Maths: AI SL复习笔记3.1.1 Coordinate Geometry
Basic Coordinate Geometry What are cartesian coordinates? Cartesian coordinates are basically the x-y coordinate system They allow us to label where things are in a two-dimensional plane In the 2D ...
IB DP Maths: AI SL复习笔记2.3.6 Strategy for Modelling Functions
Modelling with Functions What is a mathematical model? A mathematical model simplifies a real-world situation so it can be described using mathematics The model can then be used to make predictions...
Edexcel IGCSE Physics 复习笔记 2.3.3 Electrical Safety
Edexcel IGCSE Physics 复习笔记 2.3.3 Electrical Safety Electrical Safety Mains electricity is potentially lethal Potential differences as small as 50 V can pose a serious hazard to individua...
Edexcel IGCSE Physics 复习笔记 2.3.2 Calculating Energy Transfers
Edexcel IGCSE Physics 复习笔记 2.3.2 Calculating Energy Transfers Calculating Energy Transfers Work is done when charge flows through a circuit Work done is equal to the energy transferred &...
Edexcel IGCSE Physics 复习笔记 2.3.1 Electrical Power & Fuses
Edexcel IGCSE Physics 复习笔记 2.3.1 Electrical Power & Fuses Electrical Power Power is defined as The rate of energy transfer or the amount of energy transferred per second  ...
IB DP Maths: AI SL复习笔记2.3.5 Sinusoidal Models
Sinusoidal Models What are the parameters of a sinusoidal model? A sinusoidal model is of the form The a represents the amplitude of the function The bigger the value of a the bigger the range of v...
Edexcel IGCSE Physics 复习笔记 2.2.5 Electrical Components
Edexcel IGCSE Physics 复习笔记 2.2.5 Electrical Components Thermistors & LDRs Thermistors A thermistor is a temperature-dependent resistor It is represented by the following circuit symbol: The...
UCAS公布2022英国本科留学申请数据！
7月14日英国UCAS官网公布了截止至6月30日收到的2022年度英国大学本科留学申请数据，这也是每年公布的最终数据，对于申请英本的学生家长来说，有非常大的参考价值。 根据UCAS官方统计，2022年度总申请人数目前达到...
Edexcel IGCSE Physics 复习笔记 2.2.4 IV Graphs
Edexcel IGCSE Physics 复习笔记 2.2.4 IV Graphs IV Graphs As the potential difference across a component is increased, the current also increases This is because potential difference and curr...
IB DP Maths: AI SL复习笔记2.3.4 Direct & Inverse Variation
Direct Variation What is direct variation? The graphs of these models always start at the origin How do I solve direct variation problems? Worked Example b)Find the time it takes to order a list of...
IB DP Maths: AI SL复习笔记2.3.3 Exponential Models
Exponential Models What are the parameters of an exponential model? An exponential model is of the form Where e is the mathematical constant 2.718… The c represents the boundary for the function It...
