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...
AQA A Level Physics复习笔记2.4.3 The Photoelectric Equation
The Photoelectric Equation Since energy is always conserved, the energy of an incident photon is equal to: The work function + the maximum kinetic energy of the photoelectron The energy with...
AQA A Level Physics复习笔记2.4.2 Threshold Frequency & Work Function
Threshold Frequency The photoelectric effect is the phenomena in which electrons are emitted from the surface of a metal upon the absorption of electromagnetic radiation Electrons removed fr...
