Particle Physics 2.5 / 5 based on 11 ratings ? PhysicsParticle physicsASAQA Created by: Trent WarmateCreated on: 28-03-13 20:31 Photoelectric effect The phenomenon where light causes electrons to escape from the surface of a metal. 1 of 16 Wave particle duality The idea that waves and particles can both display wave like behaviour and particle like behaviour 2 of 16 Electron diffraction The phenomenon that demonstrates the wave nature of electrons 3 of 16 Ground State The lowest energy state in an atom 4 of 16 Deflection by magnetic/electric field The phenomenon that demonstrates the particle nature of electrons 5 of 16 Excitation The process where an electron in an atom gains energy and moves up to a higher energy level 6 of 16 Visible Light The type of light given off when atoms in the coating on a fluorescent tube de-excite 7 of 16 Thresh hold frequency The minimum frequency of light that will cause electrons to escape from the surface of a metal 8 of 16 De-excitation The Process where an electron in an atom losses energy by emitting a photon and drops down to a lower energy level 9 of 16 Work function The minimum amount of energy required for an electron to escape from the surface of a metal 10 of 16 Light diffraction The phenomenon that demonstrates the wave nature of light 11 of 16 Ionisation energy The amount of energy required for an electron to escape from an atom 12 of 16 Photons Particles or packets of light energy each with an energy E=hf 13 of 16 UV Light The type of light given off when mercury atoms de-excite 14 of 16 Photoelectric effect (2) The phenomenon that demonstrates the particle nature of light 15 of 16 Ionisation The process where an electron in an atom gains enough energy to escape from the atom 16 of 16
Comments
Report
Report