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AQA A Level Physics复习笔记6.1.1 Circular Motion
Circular Motion Velocity and acceleration are both vector quantities An object in uniform circular motion has a constant linear speed However, it is continuously changing direction. Since ve...
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IB DP Maths: AA HL复习笔记1.6.2 Extension of The Binomial Theorem
How do I use the binomial theorem for fractional and negative indices? How do we use the binomial theorem to estimate a value? The binomial expansion can be used to form an approximation for a valu...
AQA A Level Physics复习笔记5.4.2 Required Practical: Investigating EMF & Internal Resistance
Required Practical: Investigating EMF & Internal Resistance Aims of the Experiment The overall aim of the experiment is to investigate the relationship between e.m.f and internal resista...
AQA A Level Physics复习笔记5.4.1 Electromotive Force & Internal Resistance
Electromotive Force When charge passes through a power supply such as a battery, it gains electrical energy The electromotive force (e.m.f) is defined as: The amount of chemical energy conve...
AQA A Level Physics复习笔记5.3.4 Potential Divider Circuits
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IB DP Maths: AA HL复习笔记 1.5.2 Proof by Contradiction
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...
