Edexcel A Level Physics:复习笔记8.12 Antimatter
Properties of Antimatter The universe is made up of?matter?particles (protons, neutrons, electrons etc.) All matter particles have antimatter counterparts Antimatter particles are?identical?to thei...
Edexcel A Level Physics:复习笔记8.11 The Standard Model
Baryons & Mesons All particles of?matter?are made up of either?quarks?and/or?leptons The?standard?model?of particle physics categorises quarks and leptons by charge and mass Quarks and leptons ...
Edexcel A Level Physics:复习笔记8.10 Relativistic Situations
Relativistic Situations Accelerated particles often reach speeds that are very close to the?speed of light At such high velocities and energies,?relativistic effects?begin to become important These...
Edexcel A Level Physics:复习笔记8.9 Unit Conversions for Energy & Mass
Unit Conversions for Energy & Mass Units of Energy The electronvolt is a unit of?energy It is equivalent to the amount of energy transferred to an electron accelerated across a potential differ...
Edexcel A Level Physics:复习笔记8.8 Annihilation of Matter & Antimatter
Annihilation of Matter & Antimatter Annihilation When a particle meets its antiparticle partner, the two will?annihilate Annihilation is: When a particle meets its equivalent anti–particle they...
Edexcel A Level Physics:复习笔记8.7 High Energy Particle Collisions
High Energy Particle Collisions The Diameter of a Nucleon High energy electron beams can be used to analyse?nucleons, e.g. Protons Neutrons When electrons are accelerated to very high energies, the...
Edexcel A Level Physics:复习笔记8.6 Interpreting Particle Tracks
Interpreting Particle Tracks Particle detectors that count particles, like Geiger-Muller tubes, are useful but they cannot distinguish different types of particle Modern detectors can show the?path...
Edexcel A Level Physics:复习笔记8.5 Radius of a Charged Particle in a Magnetic Field
Radius of a Charged Particle in a Magnetic Field A charged particle in uniform?magnetic field?which is perpendicular to its direction of motion travels in a?circular?path This is because the?magnet...
Edexcel A Level Physics:复习笔记8.4 Particle Accelerators & Detectors
Particle Accelerators & Detectors Linear Accelerators A linear accelerator (LINAC) is a type of particle accelerator that accelerates ions (charged particles) to very high speeds in?straight li...
