Background radiation Flashcards
1
Q
is radiation all around us
A
yes
2
Q
where can we get radiation from
A
comsic radiation food the air and rocks nuclear weapon and power medical use
3
Q
what is cosmic rad.
A
from space
the atmosphere absorbs most of it but is a problem for pilots at they are flying that high
4
Q
how can we get radiation from food
A
foods contain radioactive substances like carbon 14 and potassium
5
Q
how can we get radiation from air and rocks
A
radon gas is radioactive and it is give off by rocks and granite
6
Q
how can we get radiation from nuclear weapons and power
A
background radiation is still left behind from nuclear weapon testing in the 1950
accidents from power stations like chernobyl have also caused this problem
7
Q
how can we get radiation from medical uses
A
medical uses radioactive sources
x rays can cause ionisation of atoms which can cause background radiation
