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AQA A Level Physics复习笔记6.2.6 Harmonic Oscillators in Context
Harmonic Oscillators in Context Any oscillations about an equilibrium where its restoring force is proportional to its displacement will be simple harmonic This doesn’t apply just to pendulu...
IB DP Maths: AA HL复习笔记1.8.1 Intro to Complex Numbers
What is an imaginary number? What is a complex number? What is Cartesian Form? There are a number of different forms that complex numbers can be written in The form z = a + bi is known as Cartesian...
AQA A Level Physics复习笔记6.2.5 Period of Simple Pendulum
Period of Simple Pendulum A simple pendulum is another type of simple harmonic oscillator The pendulum consists of a string and a bob (a weight, generally spherical) at the end The ti...
AQA A Level Physics复习笔记6.2.4 Period of Mass-Spring System
Period of Mass-Spring System A mass and spring system is a type of simple harmonic oscillator The time period of a mass-spring system is given by: Where: T = time period (s) m = mass (kg) k ...
AQA A Level Physics复习笔记6.2.3 Calculating Maximum Speed & Acceleration
Maximum Speed The speed v of an oscillator will vary in SHM. It is: Maximum at the equilibrium position (x = 0) Zero at the amplitude (x = A) The maximum speed, vmax, is given by the equatio...
AQA A Level Physics复习笔记6.2.2 SHM Graphs
SHM Graphs The displacement, velocity and acceleration of an object in simple harmonic motion can be represented by graphs against time All undamped SHM graphs are represented by periodic fu...
AQA A Level Physics复习笔记6.2.1 Conditions for Simple Harmonic Motion
Conditions for Simple Harmonic Motion Simple harmonic motion (SHM) is a specific type of oscillation An oscillation is said to be SHM when: The acceleration is proportional to the displaceme...
IB DP Maths: AA HL复习笔记1.7.2 Permutations & Combinations
What are Permutations? A permutation is the number of possible arrangements of a set of objects when the order of the arrangements matters A permutation can either be finding the number of ways to...
AQA A Level Physics复习笔记6.1.5 Centripetal Force
Calculating Centripetal Force An object moving in a circle is not in equilibrium, it has a resultant force acting upon it This is known as the centripetal force and is what keeps the object ...
AQA A Level Physics复习笔记6.1.4 Centripetal Acceleration
Calculating Centripetal Acceleration Centripetal acceleration is defined as: The acceleration of an object towards the centre of a circle when an object is in motion (rotating) around a circ...
