2023新加坡AP考试报名流程指南！
从2021年以后，不满足资格的AP社会考生就无法在中国大陆考场报名，然而最近，随着国内外逐步放宽入境限制，例如中国香港或将实行“0+0”政策。今天一起来看看2023新加坡AP考试报名流程指南！ 2023年新加坡AP考试时...
Edexcel A Level Maths: Pure:复习笔记1.1.2 Proof by Deduction
Proof by Deduction What is proof by deduction? Proof by deduction is when a mathematical and logical argument is used to shows whether or not a result is true How to do proof by deduction Y...
Edexcel A Level Maths: Pure:复习笔记1.1.1 Language of Proof
Language of Proof What is proof? Proof is a series of logical steps which show whether a result is true or not for a set of specified numbers e.g. All intigers, all even numbers etc Notation in pro...
Edexcel A Level Maths: Mechanics:复习笔记4.1.5 Using Moments - Harder
Moments - Ladder Problems How do I model ladder problems? We can model the ladder as a rod There will be two (likely different) reaction forces a vertical reaction force Rf between the bottom of th...
Edexcel A Level Maths: Mechanics:复习笔记4.1.4 Tilting
Tilting What does it mean if a rod is on the point of tilting? A rod will tilt (rotate) about a pivot if the resultant moment about that pivot is non-zero Examples of tilting: A person walking a pl...
Edexcel A Level Maths: Mechanics:复习笔记4.1.3 Centres of Mass
Uniform Rods & Laminae What is meant by the centre of mass of an object? The centre of mass of an object is the point at which the weight of the object may be considered to act For a uniform ob...
Edexcel A Level Maths: Mechanics:复习笔记4.1.2 Using Moments - Equilibrium
Using Moments - Equilibrium What happens with moments if a rigid body is in equilibrium? If a rigid body is in equilibrium then: The resultant force is 0 N The resultant moment about any point is 0...
Edexcel A Level Maths: Mechanics:复习笔记4.1.1 Moments Diagrams
Moments Diagrams When an object is modelled as a particle we do not need to consider the rotation of the object due to forces. When we model an object as a rigid body then we need to consider the r...
Edexcel A Level Maths: Mechanics:复习笔记3.3.5 Coefficient of Friction - Harder Problems
Coefficient of Friction - Equilibrium How is friction used when a body is in equilibrium? When a body is in static equilibrium under the action of a number of forces, including friction, the value ...
