Coincident, Parallel, Intersecting & Skew Lines How do I tell if two lines are parallel? Two lines are parallel if, and only if, their?direction vectors?are?parallel This means the direction ve...
Edexcel IGCSE Chemistry 復(fù)習(xí)筆記 1.5.5 Calculate Percentage Yield Calculate Percentage Yield Yield?is the term used to describe the amount of?product?you get from a reaction In practice, you?never?...
Edexcel IGCSE Chemistry 復(fù)習(xí)筆記 1.5.4 Calculate Reacting Masses Calculate Reacting Masses Chemical equations can be used to calculate the?moles?or?masses?of reactants and products To do thi...
Relative Permittivity & Dielectric Constant Permittivity is the measure of how easy it is to generate an electric field in a certain material The relativity permittivity?εr?is sometimes ...
Kinematics using Vectors How are vectors related to kinematics? Vectors are often used in questions in the context of forces, acceleration or velocity If an object is moving in?one dimension?then i...
Edexcel IGCSE Chemistry 復(fù)習(xí)筆記 1.5.3 Moles, Mass & RFM The Mole The Mole Chemical amounts are measured in moles The symbol for the unit mole is?mol One mole of a substance contains the...
Equation of a Line in Vector Form How do I find the vector equation of a line? The formula for finding the?vector equation?of a line is This is?given in the formula booklet This equation can be use...
今年的IB成績(jī)有通過(guò)考試得到的，也有通過(guò)評(píng)估給到的。 在成績(jī)公布前，看看查分攻略。 1.IB成績(jī)查詢方式 為確保所有注冊(cè)DP/CP的IB考生在5月的考試季中無(wú)論是否參加考試均能獲得最終成績(jī)，IB官方為學(xué)校提供了2種獲...
Geometrical Proof with Vectors How can vectors be used to prove geometrical properties? If two vectors can be shown to be?parallel?then this can be used to prove parallel lines If two vectors are?s...
