AQA A Level Physics復習筆記7.10.1 Alternating Current & Voltage
Sinusoidal & Root-Mean-Square Current & Voltage An alternating current (a.c) is defined as: A current which periodically varies between a positive to a negative value with time This ...
IB DP Maths: AA HL復習筆記4.6.1 The Normal Distribution
What is a continuous random variable? A continuous random variable (often abbreviated to CRV) is a random variable that can take?any value?within a range of infinite values Continuous random variab...
美國頂尖大學學費又漲價了！兩所美國頂尖院校宣布向國際生實行Need-Blind招生政策
隨著美國疫情的常態化，有些院校不光恢復了線下教學，還漲了學費。相信大家前段時間都聽說了：美國頂尖大學的學費又漲了！ 據悉，美國排名前30的大學中有27所正在提高下一學年的學雜費。而自2019-2020學年以來，...
Edexcel IGCSE Chemistry 復習筆記 1.6 5 Ionic compounds: Bonds, Structure & Properties
Edexcel IGCSE Chemistry 復習筆記 1.6 5 Ionic compounds: Bonds, Structure & Properties Ionic bonding The positive and negative charges are held together by the strong?electrostatic forces...
Edexcel IGCSE Chemistry 復習筆記 1.6 4 Ionic Bonds: Dot & Cross Diagrams
Edexcel IGCSE Chemistry 復習筆記 1.6 4 Ionic Bonds: Dot & Cross Diagrams Ionic Bonds: Dot & Cross Diagrams Deducing Dot & Cross Diagrams for Ionic Compounds Sodium is a group 1 metal so...
Edexcel IGCSE Chemistry 復習筆記 1.6.3 Formulae for Ionic Compounds
Edexcel IGCSE Chemistry 復習筆記 1.6.3 Formulae for Ionic Compounds Formulae for Ionic Compounds The formulae of simple ionic compounds can be calculated if you know the charge on the ions B...
AQA A Level Physics復習筆記7.9.6 Required Practical: Investigating Flux Linkage on a Search Coil
Required Practical: Investigating Flux Linkage on a Search Coil Aims of the Experiment The overall aim of this experiment is to determine how the magnetic flux linkage varies?with the angle ...
Edexcel IGCSE Chemistry 復習筆記 1.6.2 Common Ions
Edexcel IGCSE Chemistry 復習筆記 1.6.2 Common Ions Common Ions How to deduce the charge of an ion Find the number of electrons in the outer electron shell Find out if it is easy for the atom...
AQA A Level Physics復習筆記7.9.5 Applications of EM Induction
Moving Conductors in a Magnetic Field Similar to a coil or a solenoid, a straight conducting rod moving through a magnetic field will also have an e.m.f induced in it This is only when the c...
IB DP Maths: AA HL復習筆記4.5.2 Calculating Binomial Probabilities
Calculating Binomial Probabilities How do I calculate?P(X?=?x):?the probability of a single value for a binomial distribution? You should have a?GDC?that can calculate?binomial probabilities You wa...
Edexcel IGCSE Chemistry 復習筆記 1.6.1 Formation of Ions
Edexcel IGCSE Chemistry 復習筆記 1.6.1 Formation of Ions Formation of Ions An ion is an?electrically?charged?atom or group of atoms formed by the?loss?or?gain?of?electrons This loss o...
Edexcel IGCSE Chemistry 復習筆記 1.5.10 Calculate Volumes of Gases
Edexcel IGCSE Chemistry 復習筆記 1.5.10 Calculate Volumes of Gases Calculate Volumes of Gases Avogadro's Law Avogadro’s Law?states that at the same conditions of?temperature?and?pressure, eq...
