IB DP Maths: AI SL复习笔记3.4.1 Voronoi Diagrams
Drawing Voronoi Diagrams What are Voronoi Diagrams? A Voronoi diagram shows the region containing the set of all points which are closer to one given site than to any other site on the diagram A si...
Edexcel IGCSE Physics 复习笔记 2.4.4 Uses & Dangers of Static Electricity
Edexcel IGCSE Physics 复习笔记 2.4.4 Uses & Dangers of Static Electricity Uses of Static Electricity Electrostatic charges are used in everyday situations such as photocopiers and inkjet...
IB DP Maths: AI SL复习笔记3.3.3 Applications of Trigonometry & Pythagoras
Bearings What are bearings? Bearings are a way of describing and using directions as angles They are specifically defined for use in navigation because they give a precise location and/or direction...
IB DP Maths: AI SL复习笔记3.3.2 Non Right-Angled Trigonometry
Sine Rule What is the sine rule? The sine rule allows us to find missing side lengths or angles in non-right-angled triangles It states that for any triangle with angles A, B and C Where a is the s...
Edexcel IGCSE Physics 复习笔记 2.4.2 Core Practical: Investigating Charging by Friction
Edexcel IGCSE Physics 复习笔记 2.4.2 Core Practical: Investigating Charging by Friction Core Practical 3: Investigating Charging by Friction Aim of the Experiment The aim of this experiment ...
Edexcel IGCSE Physics 复习笔记 2.4.1 Conductors & Insulators
Edexcel IGCSE Physics 复习笔记 2.4.1 Conductors & Insulators Conductors & Insulators Conductors A conductor is a material that allows charge (usually electrons) to flow through it ea...
Edexcel IGCSE Physics 复习笔记 2.3.5 AC & DC
Edexcel IGCSE Physics 复习笔记 2.3.5 AC & DC AC & DC Direct Current A direct current (d.c.) is defined as A current that is steady, constantly flowing in the same direction in...
IB DP Maths: AI SL复习笔记3.3.1 Pythagoras & Right-Angled Triganometry
Pythagoras What is the Pythagorean theorem? Pythagoras’ theorem is a formula that works for right-angled triangles only It states that for any right-angled triangle, the square of the hypotenuse is...
IB DP Maths: AI SL复习笔记3.2.2 Volume & Surface Area
Volume of 3D Shapes What is volume? The volume of a 3D shape is a measure of how much 3D space it takes up A 3D shape is also called a solid You need to be able to calculate the volume of a number ...
