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...
英語有聲書不僅可以提升自己的聽力水平，由于部分有聲書是由專業配音人員或演員進行錄制，甚至可以進行模仿跟讀，提升自己的口語能力！除了提升自己英語水平外，如果你是選擇文史哲類書籍進行練習，這對你自身文...
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 ...
?What is an arithmetic sequence? In an?arithmetic?sequence,?the difference between consecutive terms in the sequence is constant This?constant difference?is known as the?common difference,?d,?of th...
What is a sequence? A?sequence?is an ordered set of numbers with a rule for finding all of the numbers in the sequence For example 1, 3, 5, 7, 9, … is a sequence with the rule?‘start at one and add...
