Edexcel IGCSE Physics 复习笔记 1.4.2 The Principle of Moments
Edexcel IGCSE Physics 复习笔记 1.4.2 The Principle of Moments The Principle of Moments The principle of moments states that: If an object is balanced, the total clockwise moment about...
IB DP Maths: AA SL复习笔记5.2.1 Differentiating Special Functions
Differentiating Trig Functions How do I differentiate sin and cos? For calculus with trigonometric functions angles must be measured in radians Ensure you know how to change the angle mode on your ...
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...
