A-level Physics - Particle properties

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Author:
SilcoatesScience
ID:
301684
Filename:
A-level Physics - Particle properties
Updated:
2015-05-01 07:25:28
Tags:
OCR level Particle Physics
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A-level Physics - Particle Physics
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  1. What is the charge of an up quark?
    + 2/3
  2. What is the baryon number of a proton?
    1 (it is a baryon!)
  3. What does annihilate mean?
    All the mass of a particle and its antiparticle is converted into energy
  4. Which class of particles feels the weak
    nuclear force but not the strong nuclear force?
    leptons
  5. What is the lepton number of a quark?
    0
  6. What is a baryon?
    • A particle composed of 3 quarks
    • (think 'burly baryon')
  7. Give the quark structure of a neutron
    udd
  8. What class of particle does an anti-neutrino belong to ?
    lepton
  9. What is meant by the term ‘fundamental
    particle’?
    A particle that cannot be split into smaller particles
  10. Give the quark structure of a proton
    uud
  11. What is a meson ?
    A particle made of a quark and an antiquark
  12. What is the strangeness of a strange quark?
    -1
  13. What is the charge of a down quark?
    -1/3
  14. What is a hadron?
    A particle that feels the strong nuclear force
  15. What is the spin of an up quark?
    + 1/2
  16. What is the quark structure of an antiproton ?
    Anti-up, anti-up, anti-down
  17. Name four properties that are conserved in any nuclear reaction.
    • charge
    • momentum
    • mass/energy
    • baryon number
    • lepton number
    • spin
  18. What is the strangeness of an up quark?
    0

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