Uses of Radiation (AQA GCSE Physics Combined Science): Flashcards
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13 cards from this deck
Why is certain radiation dangerous?
Why is certain radiation dangerous?
It damages cells and DNA
What is radiotherapy used for?
What is radiotherapy used for?
Kill cancer cells using high doses of radiation
What do radiotracers do?
What do radiotracers do?
Diagnose and monitor conditions by imaging internal organs
Example of a radiotracer used in medicine
Example of a radiotracer used in medicine
Technetium-99
Type of radiation used to sterilise surgical instruments
Type of radiation used to sterilise surgical instruments
Gamma rays
How do gamma rays sterilise?
How do gamma rays sterilise?
Kill bacteria and other pathogens
How is radiation used in food preservation?
How is radiation used in food preservation?
Kills bacteria and parasites, extending shelf life
Does irradiation make food radioactive?
Does irradiation make food radioactive?
No, it does not make the food radioactive
What does radiography detect in materials?
What does radiography detect in materials?
Cracks or flaws
Radioactive element used in smoke detectors
Radioactive element used in smoke detectors
Americium-241
Role of Americium-241 in smoke detectors
Role of Americium-241 in smoke detectors
Helps detect smoke particles
How are radioactive materials used in power generation?
How are radioactive materials used in power generation?
In nuclear reactors to produce electricity
How do nuclear reactors produce electricity?
How do nuclear reactors produce electricity?
Through controlled nuclear reactions