Atoms & Nuclear Radiation (AQA GCSE Physics Combined Science): Flashcards
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15 cards from this deck
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Practise the cards
15 cards from this deck
Why gamma-rays are useful in hospitals
Why gamma-rays are useful in hospitals
They pass through the human body easily
How gamma-rays destroy cancer cells
How gamma-rays destroy cancer cells
High-energy radiation damages and kills cancer cells
Medical use of gamma-rays for equipment
Medical use of gamma-rays for equipment
Kill all germs and bacteria to sterilise surgical instruments
Gamma sterilisation advantage for plastic tools
Gamma sterilisation advantage for plastic tools
Works on plastic that would melt if heated
What is a radioactive tracer
What is a radioactive tracer
Radioactive substance injected to detect cancer in body
How tracers help find cancer
How tracers help find cancer
Cancer cells absorb more tracer than healthy cells
How gamma-rays preserve food
How gamma-rays preserve food
Kill harmful bacteria to make food last longer
Does food become radioactive after gamma treatment
Does food become radioactive after gamma treatment
No, food does not become radioactive
Type of radiation in smoke alarms
Type of radiation in smoke alarms
Alpha particles
Radioactive source in smoke alarms
Radioactive source in smoke alarms
Americium-241
Why alpha particles suit smoke alarms
Why alpha particles suit smoke alarms
Very short range, easily stopped by smoke particles
Radiation type for measuring paper thickness
Radiation type for measuring paper thickness
Beta particles
How beta particles detect thick paper
How beta particles detect thick paper
Thicker paper absorbs more, fewer particles reach detector
Why alpha won't work for paper thickness control
Why alpha won't work for paper thickness control
Can't penetrate paper at all
Why gamma won't work for paper thickness control
Why gamma won't work for paper thickness control
Pass through paper too easily to detect small changes