AQA A Level Physics复习笔记3.2.3 Harmonics
Harmonics Stationary waves can have different wave patterns, known as harmonics These depend on the frequency of the vibration and the situation in which they are created These harmon...
AQA A Level Physics复习笔记3.2.2 Formation of Stationary Waves
Formation of Stationary Waves The Principle of Superposition The principle of superposition states: When two or more waves with the same frequency arrive at a point, the resultant displaceme...
AQA A Level Physics复习笔记3.1.3 Polarisation
Polarisation Polarisation is when: Particle oscillations occur in only one of the directions perpendicular to the direction of wave propagation Polarisation can only occur in transverse wave...
AQA A Level Physics复习笔记3.1.2 Longitudinal & Transverse Waves
Defining Transverse & Longitudinal Waves In mechanical waves, particles oscillate about fixed points There are two types of wave: transverse and longitudinal The type of wave can be dete...
AQA A Level Physics复习笔记2.5.6 Analysis of the Nature of Matter
Analysis of the Nature of Matter The Evolving Field of Quantum Mechanics The field of quantum mechanics is a relatively new field of research, compared to fields in classical mechanics (Newt...
AQA A Level Physics复习笔记2.5.5 Diffraction Effects of Momentum
Diffraction Effects of Momentum When electrons pass through a slit similar in size to themselves, they exhibit a wavelike property( Diffraction), meaning they spread out like a wave passing ...
AQA A Level Physics复习笔记2.5.4 The de Broglie Wavelength
The de Broglie Wavelength Using ideas based upon the quantum theory and Einstein’s theory of relativity, de Broglie suggested that the momentum (p) of a particle and its associated wavelengt...
AQA A Level Physics复习笔记2.5.3 Wave-Particle Duality
Wave-Particle Duality Light can behave as a particle (i.e. photons) and a wave This phenomenon is called the wave-particle nature of light or wave-particle duality Light interacts with matte...
AQA A Level Physics复习笔记2.5.2 Energy Levels & Photon Emission
Line Spectra & Energy Levels Atomic Energy Levels Electrons in an atom can have only certain specific energies These energies are called electron energy levels They can be represe...
