Electromagnetic Radiation in Relation to photons 0.0 / 5 ? PhysicsParticle physicsASAQA Created by: tahliaDCreated on: 13-10-15 12:38 Name, in acsending order of frequency, all electromagnetic waves Radiowaves, Microwaves,Infra-red, Visible light, Ultraviolet, X rays,Gamma 1 of 22 The higher the frequency of electromagnetic radiation, the greater its... energy 2 of 22 What was the name of the scientist who came up with Plancks Constant? Max Planck 3 of 22 What was he studying at the time? Black body radiation 4 of 22 What did Planck propose? That Em waves only existed in discrete packets called quanta 5 of 22 How did Einstein extend Planck's theory ? He suggested that EM waves AND the energy they carried only existed in discrete packets 6 of 22 What did Einstein call discrete packets? Photons 7 of 22 Give the equation for the energy of one photon E=hf 8 of 22 What is energy measured in? Joules 9 of 22 What is frequency measured in? Hz 10 of 22 What is Planck's constant measured in? Js or Joules per second 11 of 22 What is Plancks constant? 6.63*10^-34 12 of 22 Give the equation that relates frequency to wavelength and the speed of light f=c/ƛ 13 of 22 What is wavelength measured in? Metres 14 of 22 What is frequency measured in? herz 15 of 22 What is the speed of light measured in? ms^-1 16 of 22 What is the number for the speed of light? 3*10^8 17 of 22 Give an another equation for finding the energy of a photon E=hf=hC/ƛ 18 of 22 What is the difference between a particle and an antiparticle? An antiparticle has a different charge 19 of 22 What is the same between a particle and an anti particle? The rest energy, the mass 20 of 22 If all particles are known as matter then all antiparticles are known as... Antimatter 21 of 22 What is the difference between the symbol for a particle and the symbol for an antiparticle? An antiparticle symbol has a line across the top 22 of 22
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