AQA A Level Physics复习笔记6.4.4 Latent Heat Capacity
Latent Heat Capacity Energy is required to change the state of a substance Examples of changes of state are: Melting = solid to liquid Evaporation / vaporisation / boiling = liquid to gas Su...
Edexcel IGCSE Biology 复习笔记 2.10.10 Temperature Regulation
Edexcel IGCSE Biology 复习笔记 2.10.10 Temperature Regulation The Role of Skin in Temperature Regulation The skin is our largest sense organ It contains many different receptors that enable us to d...
AQA A Level Physics复习笔记6.4.3 Specific Heat Capacity
Specific Heat Capacity When a substance is heated, its temperature rises causing the particles within it to gain kinetic energy The amount of energy required to raise the temperature of a su...
Edexcel IGCSE Biology 复习笔记 2.10.9 The Human Eye
Edexcel IGCSE Biology 复习笔记 2.10.9 The Human Eye The Human Eye: Structure The eye is a highly specialised sense organ containing receptor cells that allow us to detect the stimulus of lig...
IB DP Maths: AA HL复习笔记1.9.4 De Moivre's Theorem
What is De Moivre’s Theorem? De Moivre’s theorem can be used to find powers of complex numbers How do I use de Moivre’s Theorem to raise a complex number to a power? If a complex number is in Carte...
Edexcel IGCSE Biology 复习笔记 2.10.8 Simple Reflex Arc
Simple Reflex Arc A reflex response (also known as an involuntary response) does not involve the conscious part of the brain as the coordinator of the reaction Awareness of a response having...
AQA A Level Physics复习笔记6.4.2 The First Law of Thermodynamics
The First Law of Thermodynamics The First Law of Thermodynamics, which is based on the principle of conservation of energy, states: The internal energy of a system is increased when energy i...
AQA A Level Physics复习笔记6.4.1 Internal Energy
Internal Energy Energy can be classified into two forms: kinetic or potential energy The molecules of all substances contain both kinetic and potential energies Kinetic energy is due to the ...
AQA A Level Physics复习笔记6.3.3 Resonance
Resonance The frequency of forced oscillations is referred to as the driving frequency (f) or the frequency of the applied force All oscillating systems have a natural frequency (f0), this i...
AQA A Level Physics复习笔记6.3.2 Free & Forced Oscillations
Free & Forced Oscillations Free Oscillations Free oscillations occur when there is no transfer of energy to or from the surroundings This happens when an oscillating system is displaced ...
IB DP Maths: AA HL复习笔记1.9.3 Complex Roots of Polynomials
What are complex roots? A quadratic equation can either have two real roots (zeros), a repeated real root or no real roots This depends on the location of the graph of the quadratic with respect to...
Edexcel IGCSE Biology 复习笔记 2.10.7 Synapses
Edexcel IGCSE Biology 复习笔记 2.10.7 Synapses The Role of Neurotransmitters Neurones do not actually come into direct contact with each other Where the dendrites of two neurones meet (to ma...
