Dangers of High-Energy EM Waves (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Practise the cards
13 cards from this deck
Examples of high-energy EM waves
Examples of high-energy EM waves
X-rays and gamma rays
What is ionisation?
What is ionisation?
High-energy waves knock electrons off atoms
What happens to atoms after ionisation?
What happens to atoms after ionisation?
Atoms become charged (ionised)
Why is ionisation dangerous to the body?
Why is ionisation dangerous to the body?
Harms cells and damages DNA
What is cancer?
What is cancer?
Cells grow uncontrollably
How does high-energy radiation affect cancer risk?
How does high-energy radiation affect cancer risk?
Increases the chances of getting cancer
What causes acute radiation sickness?
What causes acute radiation sickness?
Large dose of radiation all at once
Symptoms of acute radiation sickness
Symptoms of acute radiation sickness
Nausea, vomiting, diarrhoea, hair loss, organ problems
How severe can acute radiation sickness be?
How severe can acute radiation sickness be?
Life-threatening
What does genetic damage from radiation affect?
What does genetic damage from radiation affect?
Genes (body's instructions)
How can genetic damage affect future generations?
How can genetic damage affect future generations?
Health problems like birth defects
Medical use of X-rays
Medical use of X-rays
Checking bones and other medical issues
How do doctors keep X-rays safe?
How do doctors keep X-rays safe?
Limit exposure