Strange particles and strangeness Quiz
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5 questions, one answer each
Each answer is checked as you go, with why.
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1. A reaction produces a K⁺ and a K⁻ from non-strange particles. Why?
- A. Strangeness is conserved, so strange particles are made in pairs
- B. Charge is not conserved
- C. Baryon number is not conserved
- D. Kaons are unstable
2. Which interaction is responsible for the decay K⁻ → π⁻ + π⁰?
- A. Strong
- B. Weak
- C. Gravitational
- D. None of these
3. By how much can strangeness change in a weak interaction?
- A. Only 0
- B. 0 or +1 only
- C. 0, +1 or −1
- D. Any whole number
4. Could p + p → p + n + K⁺ occur through the strong interaction?
- A. No, baryon number is not conserved
- B. No, charge is not conserved
- C. Yes, all quantities are conserved
- D. No, strangeness is not conserved
5. What is the strangeness of the π⁻?
- A. 0
- B. +1
- C. −1
- D. +2