IB DP Maths: AI SL復習筆記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...
Edexcel IGCSE Physics 復習筆記 3.2.2 Reflection & Refraction
Edexcel IGCSE Physics 復習筆記 3.2.2 Reflection & Refraction Reflection & Refraction All waves, whether transverse or longitudinal, can be?reflected?and?refracted Reflection occurs w...
Edexcel IGCSE Physics 復習筆記 3.2.1 Light & Sound Waves
Edexcel IGCSE Physics 復習筆記 3.2.1 Light & Sound Waves Light Visible light is a part of the electromagnetic spectrum which means it is a?transverse wave This means the direction the li...
Edexcel IGCSE Physics 復習筆記 3.1.7 Dangers of EM Waves
Edexcel IGCSE Physics 復習筆記 3.1.7 Dangers of EM Waves Dangers of EM Waves As the frequency of electromagnetic (EM) waves increases, so does the energy Beyond the visible part of the spect...
Edexcel IGCSE Physics 復習筆記 3.1.6 Applications of EM Waves
Edexcel IGCSE Physics 復習筆記 3.1.6 Applications of EM Waves Applications of EM Waves Electromagnetic waves have a variety of uses and applications The main ones are summarised in the table...
Edexcel IGCSE Physics 復習筆記 3.1.5 Electromagnetic (EM) Waves
Edexcel IGCSE Physics 復習筆記 3.1.5 Electromagnetic (EM) Waves Properties of EM Waves Electromagnetic waves are defined as: Transverse waves that transfer energy from the source of t...
Edexcel IGCSE Physics 復習筆記 3.1.4 The Doppler Effect
Edexcel IGCSE Physics 復習筆記 3.1.4 The Doppler Effect The Doppler Effect The?Doppler Effect?is defined as: The apparent change in wavelength and frequency of a wave emitted by a mov...
IB DP Maths: AI SL復習筆記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...
Edexcel IGCSE Physics 復習筆記 3.1.3 The Wave Equation
Edexcel IGCSE Physics 復習筆記 3.1.3 The Wave Equation The Wave Equation All waves obey the?wave equation, which is used to calculate the?wave?speed: Where: v?= wave speed in?m...
