| Hint | Answer | % Correct |
|---|---|---|
| what is it when large nuclei spontaneously split into two smaller nuclei | fission | 100%
|
| which radiation is stopped by a few cm of air or a sheet of paper | alpha | 64%
|
| the larger the binding energy per nucleon, the ____ stable the nucleus will be | more | 64%
|
| which type of radiation is most ionising | alpha | 55%
|
| state 2 nuclear processes which can be used to generate energy | fission | 55%
|
| fusion | 55%
| |
| which process includes joining 2 nuclei to make a larger one, whilst releasing energy in the process | fusion | 55%
|
| which type of radiation is most weakly ionising | gamma | 55%
|
| which radiation is emitted when. nucleus has top much energy | gamma | 55%
|
| what conditions are needed for nuclear fusion | high temperature | 55%
|
| do gamma rays have a charge | no | 55%
|
| what are the 2 types of fission | spontaneous | 55%
|
| where does nuclear fusion constantly happen | stars | 55%
|
| which radiation is emitted when a nucleus has too much mass | alpha | 45%
|
| which radiation is stopped by a few mm of aluminium or a metre of air | beta minus | 45%
|
| which type of decay is it when a neutron turns into a proton, and releasesan electron and electron antineutrino | beta minus | 45%
|
| which decay is it when a proton turns into a neutron, and releases apositron and electron neutrino | beta plus | 45%
|
| what does beta minus radiation consist of | electrons | 45%
|
| the mass defect is a result of some mass being converted into ______ used to hold the nucleus together | energy | 45%
|
| induced | 45%
| |
| what does beta plus radiation consist of | positrons | 45%
|
| which radiation is emitted when a nucleus has too many neutrons | beta minus | 36%
|
| which radiation has 0 range | beta plus | 36%
|
| which radiation is emitted when a nucleus has too many protons | beta plus | 36%
|
| what is the name for the energy required to hold nucleus togetehr | binding energy | 36%
|
| high density | 36%
| |
| what is the most stable nucleus | iron | 36%
|
| what do you call the energy required to disassemble an atomic nucleus into its constituent protons and neutrons | nuclear binding energy | 36%
|
| what is low-level ionizing radiation present in the environment from natural and artificial sources, not caused by deliberate introduction | background radiation | 27%
|
| what process can cause an electron to change energy levels | excitation/ionisation | 27%
|
| which fission includes absorbing a neutron and splitting into 2 smallernuclei, releasing energy and a neutron | induced | 27%
|
| what are the units of the decay constant | inverse time | 27%
|
| what is the name given to the difference in mass of the nucleus and the sum of mass of separate constituents | mass defect | 27%
|
| what is a measure used to compare the binding energies of differentnuclei | binding energy per nucleon | 18%
|
| what does random mean | unpredictable | 18%
|
| which radiation travels the fastest and at what speed | gamma at speed of light | 9%
|
| what is gamma radiation | high energy electromagnetic radiation | 9%
|
| what does spontaneous fission mean | occurs without any external intervention | 9%
|
| what absorbs gamma radiation | several inches of lead | 9%
|
| how does the mass of a nucleus compare to the sum of themass of its individual constituents? | always less | 0%
|
| how do unstable nuclei become more stable | by emitting radiation | 0%
|