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Gell-Mann discovers quark
Contributed by: Ball
  • 1. Who discovered quarks?
A) Niels Bohr
B) Erwin Schrödinger
C) Richard Feynman
D) Murray Gell-Mann
  • 2. Which group of particles did Gell-Mann propose were made up of quarks?
A) Fermions
B) Hadrons
C) Leptons
D) Bosons
  • 3. What are the three types of quarks identified by Gell-Mann initially?
A) Photon, W, Z
B) Red, Blue, Green
C) Electron, Proton, Neutron
D) Up, Down, Strange
  • 4. What is the third 'strangeness' quantum number in particle physics used to classify quarks?
A) Isospin
B) Flavor
C) Charm
D) Spin
  • 5. What is the color charge of a quark?
A) Red, Blue, or Green
B) Yellow
C) Black
D) Positive
  • 6. The down quark has what kind of electric charge?
A) -2/3
B) -1/3
C) +2/3
D) +1/3
  • 7. Quarks are never observed in isolation due to what phenomenon?
A) Annihilation
B) Decay
C) Disintegration
D) Confinement
  • 8. Which experiment provided the evidence for the existence of quarks?
A) Photoelectric effect
B) Deep inelastic scattering
C) Davisson-Germer experiment
D) Double-slit experiment
  • 9. Protons and neutrons are composed of which quarks?
A) Top and bottom quarks
B) Strange and charm quarks
C) Up and down quarks
D) Red and blue quarks
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