Edexcel IGCSE Physics 复习笔记 2.2.5 Electrical Components
Edexcel IGCSE Physics 复习笔记 2.2.5 Electrical Components Thermistors & LDRs Thermistors A thermistor is a temperature-dependent resistor It is represented by the following circuit symbol: The...
Edexcel IGCSE Physics 复习笔记 2.2.4 IV Graphs
Edexcel IGCSE Physics 复习笔记 2.2.4 IV Graphs IV Graphs As the potential difference across a component is increased, the current also increases This is because potential difference and curr...
IB DP Maths: AI SL复习笔记2.3.4 Direct & Inverse Variation
Direct Variation What is direct variation? The graphs of these models always start at the origin How do I solve direct variation problems? Worked Example b)Find the time it takes to order a list of...
IB DP Maths: AI SL复习笔记2.3.3 Exponential Models
Exponential Models What are the parameters of an exponential model? An exponential model is of the form Where e is the mathematical constant 2.718… The c represents the boundary for the function It...
Edexcel IGCSE Physics 复习笔记 2.2.3 Resistors in Series
Edexcel IGCSE Physics 复习笔记 2.2.3 Resistors in Series Resistors in Series When two or more resistors are connected in series, the total (or combined) resistance is equal to the sum of the...
IB DP Maths: AI SL复习笔记2.3.2 Quadratic & Cubic Models
Quadratic Models What are the parameters of a quadratic model? This is given in the formula booklet as the axis of symmetry What can be modelled as a quadratic model? These can be used if the graph...
Edexcel IGCSE Physics 复习笔记 2.2.2 Voltage in Series & Parallel
Edexcel IGCSE Physics 复习笔记 2.2.2 Voltage in Series & Parallel Voltage in Series & Parallel In a series circuit: The current is the same at all points ie. through each component T...
IB DP Maths: AI SL复习笔记2.3.1 Linear & Piecewise Models
Linear Models What are the parameters of a linear model? The m represents the rate of change of the function This is the amount the function increases/decreases when x increases by 1 If the functio...
IB DP Maths: AI SL复习笔记2.2.3 Properties of Graphs
Quadratic Functions & Graphs What are the key features of quadratic graphs? If a is positive then the vertex is the minimum point If a is negative then the vertex is the maximum point Exam Tip ...
