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