A-level Physics - Particles (Forces and radioactivity)
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Is the strong nuclear force attractive or repulsive?
Both - it is initially attractive but becomes repulsive if the particles are too close together
Which element will not yield energy through either fission or fusion?
Which type of radiation is used in a smoke alarm?
Alpha (because it is so ionising)
Which type of nuclear radiation is the most ionising?
Which force acts on both leptons and hadrons?
The weak nuclear force
What quantity is defined as:
“the energy required to separate the nucleons in a nucleus”
Which type of nuclear radiation is the least penetrating ?
What are the control rods in a nuclear fission reactor made of?
Why is a moderator needed in a nuclear
To slow down the neutrons released from fission reactions such that they can be absorbed by Uranium nuclei and induce other fission reactions.
What does the strong nuclear force act on?
hadrons (nucleons) (but not leptons)
Name a use of nuclear fission other than commercial electricity generation and nuclear weapons
- Powering of boats (eg submarines, ice breakers)
- Generation of electricity for space probes
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