Edexcel IGCSE Physics 复习笔记 1.4.1 Moments
Edexcel IGCSE Physics 复习笔记 1.4.1 Moments The Moment of a Force As well as causing objects to speed up, slow down, change direction and deform, forces can also cause objects to rotate An ...
Edexcel IGCSE Physics 复习笔记 1.3.4 Momentum & Safety Features
Edexcel IGCSE Physics 复习笔记 1.3.4 Momentum & Safety Features Momentum & Safety Features Since force is equal to the rate of change in momentum, the force of an impact in a vehicle...
Edexcel IGCSE Physics 复习笔记 1.3.3 Newton's Third Law
Edexcel IGCSE Physics 复习笔记 1.3.3 Newton's Third Law Newton's Third Law Newton's third law of motion states: Whenever two bodies interact, the forces they exert on each other are e...
AQA 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 walki...
TUMA和其他牛剑数学测试有什么区别？
TMUA 这两年突然“异军突起”，先是2021年剑桥宣布所有申请计算机科学的学生都要考 TMUA；再是今年剑桥砍掉 ECAA，改为 TMUA。可以说 TMUA 是这两年剑桥最重视的考试了！连LSE 都官网鼓励申请学生考TMUA。 为什么TM...
Edexcel IGCSE Physics 复习笔记 1.3.2 Forces & Momentum
Edexcel IGCSE Physics 复习笔记 1.3.2 Forces & Momentum Forces & Momentum When a force acts on an object that is moving, or able to move, the object will accelerate (or decelerate) Th...
AQA 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 uni...
AQA 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 poi...
IB DP Maths: AA SL复习笔记5.1.1 Introduction to Differentiation
Introduction to Derivatives Before introducing a derivative, an understanding of a limit is helpful What is a limit? What might I be asked about limits? You may be asked to use your GDC to plot the...
Edexcel IGCSE Physics 复习笔记 1.3.1 Momentum
Edexcel IGCSE Physics 复习笔记 1.3.1 Momentum Calculating Momentum A moving object has momentum which is defined by the equation: p = mv Where: p = momentum in kilogram metre p...
AQA 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 consid...
Edexcel IGCSE Physics 复习笔记 1.2.9 Hooke's Law
Edexcel IGCSE Physics 复习笔记 1.2.9 Hooke's Law Hooke's Law The relationship between the extension of an elastic object and the applied force is defined by Hooke's Law Hooke's Law states th...
