1. Which particle is the slowest, and is the most ionising?
- Alpha particles are the fastest and smallest, and the least ionising.
- Beta particles are the slowest, and are the most ionising, they're small too.
- Alpha is big and slow movin', it doesn't penetrate very far into materials. It is strongly ionising, (creates lots of ions). Beta particles move fast and they're small. Gamma particles penetrate far into materials, and are weakly ioonising.
- Gamma particles penetrate far into materials, and are the slowest. They're the most ionising.
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Other questions in this quiz
2. What are isotopes?
- Atoms with the same number of protons but a different number of neutrons.
- Atoms with the same number of neutrons but a different number of protons
- Atoms with the same number of electrons but a different number of neutrons
- Atoms with the same number of protons but a different number of electrons
3. Beta -->
- 0, -1 p (for proton)
- 0, -1 e (for electron)
- 0, -2 e (for electron)
- 0, +1 e (for electron)
4. What particles are beta particles? (think atomic model)
5. Where does background radiation come from? 3 answers please.
- a) Nuclear waste b) Fossil Fuels c) Cosmic Rays
- a) The ionosphere b) Naturally occuring unstable isotopes e.g food and rocks c) Radiatiors
- a) Naturally occuring unstable isotopes e.g rocks, food, building material. b) space, cosmic rays, mostly coming from the sun. c) man made sources, e.g fallout from nuclear weapons tests- chernobyl or dumped nuclear waste.
- a) Cosmic Ray Radiation b) Technology c) Nuclear explosions