Arithmetic Sequences What is an arithmetic sequence? In an arithmetic sequence, the difference between consecutive terms in the sequence is constant This constant difference is known as the common ...
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...
Edexcel IGCSE Physics 复习笔记 5.2.3 Core Practical: Investigating Changes of State Core Practical 10: Investigating Changes of State Aim of the Experiment The aim of this experiment is to i...
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 ...
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 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...
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 Solids, Liquids & Gases Matter can exist in one of three different states: solid, liquid, or gas Solids In a solid...
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 ...
