Edexcel IGCSE Physics 复习笔记 2.3.4 Electricity & Heat
Edexcel IGCSE Physics 复习笔记 2.3.4 Electricity & Heat Electricity & Heat When electricity passes through a component, such as a resistor, some of the electrical energy is turned in...
IB DP Maths: AI SL复习笔记3.2.1 3D Coordinate Geometry
3D Coordinate Geometry How does the 3D coordinate system work? In three-dimensional space we can label where any object is using the x-y-z coordinate system In the 3D cartesian system, the x- and y...
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...
