IB DP Maths: AA HL復習筆記3.9.4 The Scalar Product
The Scalar ('Dot') Product What is the scalar product? The scalar product (also known as the dot product) is one form in which two vectors can be combined together The result of taking the scalar p...
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IB DP Maths: AA HL復習筆記3.9.3 Magnitude of a Vector
Magnitude of a Vector How do you find the magnitude of a vector? The?magnitude?of a vector tells us its?size?or?length For a?displacement?vector it tells us the?distance?between the two points For ...
GCSE考試很難嗎？2021年最難的5道數(shù)學真題解析！
GCSE考試很難嗎？本期我們來看看英國TS網(wǎng)站提到的2021年最難的5道GCSE數(shù)學真題解析！TS表示雖然他們已經(jīng)盡量在學生中調(diào)查最難的GCSE數(shù)學題了，但是每個人在GCSE數(shù)學上的優(yōu)點和缺點的都不同，所以不存在真正意義上...
AQA A Level Physics復習筆記7.6.1 Capacitance
Capacitance Capacitors are electrical devices used to store energy in electronic circuits, commonly for a backup release of energy if the power fails They are in the form of two conductive m...
IB DP Maths: AA HL復習筆記3.9.2 Position & Displacement Vectors
Adding & Subtracting Vectors How are vectors added and subtracted numerically? To?add?or?subtract?vectors numerically simply add or subtract each of the corresponding components In?column vecto...
AQA A Level Physics復習筆記7.5.3 Work Done on a Charge
Work Done on a Charge When a mass with charge moves through an electric field, work is done The work done in moving a charge q is given by: ?W?=?q?V Where: ?W?= change in work done (J) q?= c...
AQA A Level Physics復習筆記7.5.2 Graphical Representation of Electric Potential
Graphical Representation of Electric Potential Electric field strength,?E?and the?electric potential,?V?can be graphically represented against the distance from the centre of a charge,?r E, ...
AQA A Level Physics復習筆記7.5.1 Electric Potential
Electric Potential In order to move a positive charge closer to another positive charge, work must be done to overcome the force of repulsion between them Similarly, to move a positive charg...
IB DP Maths: AA HL復習筆記3.9.1 Introduction to Vectors
Scalars & Vectors What are scalars? Scalars?are quantities without?direction They have only a?size (magnitude) For example:?speed, distance, time, mass Most scalar quantities?can never be?negat...
