Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：4.2.2 Gravitational Potential Energy Gravitational Potential Energy The gravitational potential energy (GPE) of an object (also known as its g...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：4.2.1 Work Done Work Done Whenever any work is done, energy gets transferred (mechanically) from one store to another The amount of energy tra...
Integrating with Trigonometric Identities What are trigonometric identities? Some are given in the formulae booklet Be sure to note the difference between the?±?and???symbols! How do I know which t...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：4.1.6 Reducing Energy Loss Reducing Energy Loss Energy loss can be reduced by doing one of two things: By reducing the amount of?unwanted?(was...
Edexcel IGCSE Physics: Double Science 復(fù)習(xí)筆記：4.1.5 Core Practical: Investigating Thermal Energy Core Practical 8: Investigating Thermal Energy Equipment List Resolution?of measuring equip...
Harder Substitution What is integration by substitution? Make sure you are familiar with Reverse Chain Rule and Substitution (RCR) In more difficult questions the substitution will be given to you ...
Substitution (Reverse Chain Rule) What is integration by substitution? Make sure you are familiar with Chain Rule and Reverse Chain Rule In more awkward problems it is harder to spot the reverse ch...
f'(x)/f(x) Integrating fractions The technique for integrating fractions depends on the type of fraction For?polynomial?denominators?see Integration using Partial Fractions If ?then?y = ln |x| + c?...
Reverse Chain Rule What is the chain rule? The Chain Rule is a way of differentiating two (or more) functions In many simple cases the above formula/substitution is not needed The same can apply fo...
