AQA 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 &n...
IB DP Maths: AA SL复习笔记5.1.2 Applications of Differentiation
Increasing & Decreasing Functions What are increasing and decreasing functions? How do I find where functions are increasing, decreasing or stationary? To identify the intervals on which a func...
AQA 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...
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...
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...
