Radiation Flashcards
What is background radiation
Radiation we are exposed to daily
What’s are 3 ionising radiations that we are exposed to
Cosmic radiation
Rocks and soil
Radon gas
What is the name of the place where the first atomic bomb was dropped in the Second World War
Hirashima
What unique property does uranium ore have as observed in the underground uranium mine?
Fluorescence
What is the name of the famous scientist who received two Nobel prizes, one for chemistry and one for physics
Marie curie
The trinity site in New Mexico was the site where the first ever atomic bomb was detonated. There was catastrophic amounts of heat given out by the explosion. What happened to the sand in the surrounding area?
It melted and fused to make a green glass called trinitite
Why is it that flight attendants and pilots have a limit to how many flights they can undertake on an annual basis?
To protect them from exceeding a safe radiation dose. Because when flying u receive a dose which is higher than normal
Why does Fukushima which wasn’t as catastrophic have a higher measured radiational value compared to the Chernobyl disaster
Fukushima happened much more recently, as Chernobyl has had 25 years longer to slowly become safer than fukushima
What do u measure ionising radiation in
Sieverts
What dose of ionising radiation would be fatal
2 sieverts
Radioactivity occurs when an unstable nucleus decays and releases or emits an … particle a … particle or a … wave
Alpha
Beta
Gamma
… particles have the least energy and can be stopped by a thin sheet of paper
Alpha
… particles can be stopped by aluminium
Beta
Nothing can stop … rays
Gamma
Beta=
Light, fast, harder to stop
