Edexcel IGCSE Physics 复习笔记 5.2.4 Specific Heat Capacity
Edexcel IGCSE Physics 复习笔记 5.2.4 Specific Heat Capacity Specific Heat Capacity How much the temperature of a system increases depends on: The mass of the substance heated The type of mat...
IB DP Maths: AI HL复习笔记1.3.1 Language of Sequences & Series
Language of Sequences & Series What is a sequence? A sequence is an ordered set of numbers with a rule for finding all of the numbers in the sequence For example 1, 3, 5, 7, 9, … is a sequence ...
IB DP Maths: AI HL复习笔记1.2.2 Logarithms
Introduction to Logarithms What are logarithms? Why use logarithms? Logarithms allow us to solve equations where the exponent is the unknown value We can solve some of these by inspection Exam Tip ...
Edexcel IGCSE Physics 复习笔记 5.2.2 Changes of State
Edexcel IGCSE Physics 复习笔记 5.2.2 Changes of State Changes of State When a substance changes state, the number of molecules in that substance doesn’t change and so neither does its mass T...
IB DP Maths: AI HL复习笔记1.2.1 Exponents
Laws of Indices What are the laws of indices? Laws of indices (or index laws) allow you to simplify and manipulate expressions involving exponents An exponent is a power that a number (called the b...
Edexcel IGCSE Physics 复习笔记 5.2.1 Solids, Liquids & Gases
Edexcel IGCSE Physics 复习笔记 5.2.1 Solids, Liquids & Gases Solids, Liquids & Gases Matter can exist in one of three different states: solid, liquid, or gas Solids In a solid...
IB DP Maths: AI HL复习笔记1.1.3 GDC: Solving Equations
Systems of Linear Equations What are systems of linear equations? A linear equation is an equation of the first order (degree 1) It is usually written in the form ax + by + c = 0 where a, b, and c ...
Edexcel IGCSE Physics 复习笔记 5.1.4 Pressure in Liquids
Edexcel IGCSE Physics 复习笔记 5.1.4 Pressure in Liquids Pressure in Liquids A fluid is either a liquid or a gas When an object is immersed in a fluid, the fluid will exert pressure, squeezi...
IB DP Maths: AI HL复习笔记1.1.2 Approximation & Estimation
Approximating Values How do I know what to round my answer to? Unless otherwise told, always round your answers to 3 significant figures (3 s.f.) The first non-zero digit is the first significant d...
