Uses of radiation (Edexcel GCSE Physics Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Why are gamma rays used to treat cancer?
Why are gamma rays used to treat cancer?
They can penetrate deep into the body
Why are gamma rays preferred for medical tracers?
Why are gamma rays preferred for medical tracers?
Short half-life, pass through body
What do gamma rays kill when sterilising food and medical equipment?
What do gamma rays kill when sterilising food and medical equipment?
Bacteria and microbes
Why doesn't gamma sterilisation damage delicate items like fruit?
Why doesn't gamma sterilisation damage delicate items like fruit?
It doesn't involve heat
Which type of radiation is used for thickness gauging?
Which type of radiation is used for thickness gauging?
Beta
Why is alpha radiation not used for thickness gauging?
Why is alpha radiation not used for thickness gauging?
It would be fully blocked
In thickness gauging, what happens if the material is too thick?
In thickness gauging, what happens if the material is too thick?
Less radiation passes through
Which radiation is used to detect leaks in underground pipes?
Which radiation is used to detect leaks in underground pipes?
Gamma
Which type of radiation is used in smoke alarms?
Which type of radiation is used in smoke alarms?
Alpha
How does smoke trigger a smoke alarm?
How does smoke trigger a smoke alarm?
Smoke absorbs alpha particles
What is true about short half-life radioactive sources?
What is true about short half-life radioactive sources?
Become safer faster
Why do medical tracers use short half-life gamma sources?
Why do medical tracers use short half-life gamma sources?
To avoid prolonged exposure