Welcome to the Quiz!
This quiz contains 8 questions from a mix of 1 subtopics.
stable / unstable / combining / splitting
Nuclear fission is the up of a large and nucleus, into smaller nuclei.
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Spontaneous fission is when the fission is unforced and the atom splits by itself.
Is spontaneous fission common or rare?
Common
Rare
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proton / neutron / stable / unstable
Fission can occur by an atom's nucleus absorbing a and becoming even more . The neutron helps to split the nucleus.
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Steps for a nuclear fission chain reaction
daughter / gamma / chain / split / neutron
- It starts with an unstable nucleus like uranium-235.
- A is then fired at the unstable nucleus and causes it to apart.
- The unstable nucleus splits into two '' nuclei and two or three neutrons, while also emitting lots of energy in the form of radiation.
- The two or three neutrons that were released are then absorbed by other unstable nuclei and this repeats the process from step 3.
- This process then occurs over and over again in what we call a reaction.
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How nuclear power stations generate electricity
generator / turbines / gamma / beta / alpha / water
- Whenever unstable nuclei split apart they release lots of radiation.
- This gamma radiation is then used to heat liquid into steam.
- As the steam rises it turns , and the kinetic energy of those turbine is converted into electricity by a .
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Ensuring safety in nuclear reactors
It is very important that the chain reaction of nuclear reactors is kept under control to avoid a nuclear meltdown.
To help keep the reaction stable, we can lower rods into the nuclear reactor which neutrons and down the chain reaction.
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What are the main pros of nuclear power?
(Select all that apply)
Nuclear power plants generate renewable energy
Nuclear fuel such as uranium or plutonium is relatively cheap
Nuclear power plants can produce large and steady electric power
Nuclear power does not produce any greenhouse gas
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State and explain three cons of nuclear power.
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