Quarks, leptons and hadrons Quiz
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5 questions, one answer each
Each answer is checked as you go, with why.
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1. What is the baryon number of a meson?
- A. +1
- B. 0
- C. +1/3
- D. −1
2. What is the charge of the antiproton?
- A. −1 e
- B. +1 e
- C. 0
- D. −1/3 e
3. Which particle experiences the strong interaction?
- A. The electron
- B. The muon neutrino
- C. The neutron
- D. The positron
4. Which quark composition describes a baryon?
- A. u d̄
- B. d̄ s
- C. s̄ s̄
- D. u d d
5. The bottom quark was found before the top quark. What led physicists to predict the top quark?
- A. Symmetry between quark and lepton families
- B. Its charge was seen in tracks
- C. The strong interaction needs it to exist
- D. It was found in the Σ⁺ baryon