IB DP Maths: AA HL复习笔记4.1.2 Statistical Measures
Mean, Mode, Median What are the mean, mode and median? Mean, median and mode are measures of central tendency They describe where the centre of the data is They are all types of averages In statist...
IB DP Maths: AA HL复习笔记4.1.1 Sampling & Data Collection
Types of Data What are the different types of data? Qualitative data is data that is usually given in words not numbers to describe something For example: the colour of a teacher's car Quantitativ...
IB DP Maths: AA HL复习笔记3.11.4 Shortest Distances with Planes
Shortest Distance Between a Line and a Plane How do I find the shortest distance between a given point on a line and a plane? The shortest distance from any point on a line to a plane will always b...
IB DP Maths: AA HL复习笔记3.11.3 Angles Between Lines & Planes
Angle Between Line & Plane How do I find the angle between a line and a plane? When you find the angle between a line and a plane you will be finding the angle between the line itself and the l...
IB DP Maths: AA HL复习笔记3.11.2 Intersections of Lines & Planes
Intersection of Line & Plane How do I tell if a line is parallel to a plane? A line is parallel to a plane if its direction vector is perpendicular to the plane’s normal vector The scalar produ...
IB DP Maths: AA HL复习笔记3.11.1 Vector Equations of Planes
Equation of a Plane in Vector Form How do I find the vector equation of a plane? A plane is a flat surface which is two-dimensional Imagine a flat piece of paper that continues on forever in both d...
IB DP Maths: AA HL复习笔记3.10.5 Shortest Distances with Lines
Shortest Distance Between a Point and a Line How do I find the shortest distance from a point to a line? The shortest distance from any point to a line will always be the perpendicular distance Not...
AQA A Level Physics复习笔记7.7.1 Charge & Discharge Graphs
Capacitor Charge & Discharge Graphs Charging Capacitors are charged by a power supply (eg. a battery) When charging, the electrons are pulled from the plate connected to the positive ter...
AQA A Level Physics复习笔记7.6.3 Energy Stored by a Capacitor
Energy Stored by a Capacitor When charging a capacitor, the power supply pushes electrons from the positive to the negative plate It therefore does work on the electrons and electrical energ...
