AQA A Level Physics復(fù)習(xí)筆記1.1.1 SI Units
SI Base Quantities There is a seemingly endless number of units in Physics These can all be reduced to six base units from which every other unit can be derived These seven units are referre...
AQA A Level Physics復(fù)習(xí)筆記1.2.1 Sources of Uncertainty
Random & Systematic Errors Measurements of quantities are made with the aim of finding the?true value?of that quantity In reality, it is impossible to obtain the true value of any quanti...
AQA A Level Chemistry復(fù)習(xí)筆記8.1.1 Required Practical 7
Required Practical 7 Required Practical 7: Measuring the rate of a reaction There are two ways to measure the rate of reaction By an initial rate method By a continuous monitoring method &nb...
Edexcel IGCSE Maths復(fù)習(xí)筆記 1.13.2 Standard Form - Harder
Edexcel IGCSE Maths復(fù)習(xí)筆記 1.13.2 Standard Form - Harder Standard form – harder questions Make sure you are familiar with:Roots & Indices – Basics Standard Form – Basics Harder problems often ...
AQA A Level Chemistry復(fù)習(xí)筆記8.2.1 Required Practical 11
Required Practical 11 Required Practical 11: Carry out simple test-tube reactions to identify transition metal ions in aqueous solution This practical covers a number of key laboratory skill...
AQA A Level Chemistry復(fù)習(xí)筆記8.3.1 Required Practical 10a
Introduction to required practical 10a Required Practical 10a: Preparation of an organic solid and a test of its purity This practical covers a number of key laboratory skills use appropriat...
Edexcel IGCSE Maths復(fù)習(xí)筆記 1.13.1 Standard Form - Basics
Edexcel IGCSE Maths復(fù)習(xí)筆記 1.13.1 Standard Form - Basics What is standard form? Standard Form (sometimes called Standard Index Form) is a way of writing very big and very small numbers using power...
AQA A Level Chemistry復(fù)習(xí)筆記7.1.1 Optical Isomerism
Optical Isomerism Optical isomerism Stereoisomers?are molecules that have the same?structural formula?but have the atoms arranged differently in space There are two types of stereoisomerism ...
AQA A Level Chemistry復(fù)習(xí)筆記7.2.1 Aldehydes & Ketones
Oxidation of Aldehydes Aldehydes and ketones contain the carbonyl functional group, C=O This is why aldehydes and ketones are also known as carbonyls The difference between aldehydes and ket...
