Question Constellation Sign up for free AQA · GCSE · Physics · Higher
Risks from high-frequency electromagnetic waves
The three highest frequency groups of electromagnetic waves are hazardous.
Describe a risk linked to each group of high frequency electromagnetic wave.
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Study the marking See what earns credit and compare it with a full-mark answer.
Marking points
- 1 Gives a first valid wave-group/risk link from the official alternatives.
- 2 Gives a second valid, distinct wave-group/risk link from the official alternatives.
Full-mark answer
Ultraviolet can damage the skin, causing sunburn, premature ageing or skin cancer. X-rays and gamma rays can damage DNA and cause mutations, increasing the risk of cancer.
Why this answer loses marks
They are dangerous and can cause cancer.
A generic cancer statement can earn at most the conditional fallback mark. Full credit needs distinct risks linked to the named high-frequency groups.