What is proof by contradiction? Proof by contradiction is a way of proving a result is true by showing that the negation can not be true It is done by: Assuming the negation (opposite) of the resul...
建筑学是一门以学习如何设计建筑为主，同时学习相关基础技术课程的学科，是目前就业前景最好的专业之一。下面我们具体来介绍一下美国大学建筑学专业排名靠前的学校及申请要求！ 1. 美国建筑学学位设置 美国建筑硕...
Series & Parallel Circuits Current In a series circuit, the current is the same for all components In a parallel circuit, the current is split across the different branches (or junction)...
What is proof by induction? Proof by induction is a way of proving a result is true for a set of integers by showing that if it is true for one integer then it is true for the next integer It can b...
Resistors in Series & Parallel Resistors in Series When two or more components are connected in series: The combined resistance of the components is equal to the sum of individual resist...
Required Practical: Investigating Resistivity Aims of the Experiment The aim of the experiment is to determine the resistivity of a 2 metre constantan wire Variables: Independent variable = ...
Superconductivity All materials have some resistivity - even good electrical conductors such as copper and silver Resistance means that when electricity flows through a material, it heats up...
What is proof? Proof is a series of logical steps which show a result is true for all specified numbers ‘Seeing’ that a result works for a few numbers is not enough to show that it will work for al...
What is compound interest? Interest is a small percentage paid by a bank or company that is added on to an initial investment Interest can also refer to an amount paid on a loan or debt, however IB...
Many real-life situations can be modelled using sequences and series, including but not limited to: patterns made when tiling floors; seating people around a table; the rate of change of a populati...
英语有声书不仅可以提升自己的听力水平，由于部分有声书是由专业配音人员或演员进行录制，甚至可以进行模仿跟读，提升自己的口语能力！除了提升自己英语水平外，如果你是选择文史哲类书籍进行练习，这对你自身文...
What is a geometric sequence? In a geometric sequence, there is a common ratio, r, between consecutive terms in the sequence For example, 2, 6, 18, 54, 162, … is a sequence with the rule ‘start at ...
