Question detail
What is radioactive contamination?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Atoms and nuclear radiation
Question
- A. The unwanted presence of radioactive atoms on or inside an object or person.
- B. The exposure to ionising radiation from a radioactive source.
- C. The process of radioactive decay.
- D. The emission of radiation from a stable nucleus.
Answer
The correct answer is A: The unwanted presence of radioactive atoms on or inside an object or person..
Explanation
The correct answer is A: The unwanted presence of radioactive atoms on or inside an object or person.. This supports the learning objective "Explain that ionising radiation can increase the risk of cancer or mutations." in Radioactive contamination because it uses the correct atomic and nuclear radiation relationship for Atoms and nuclear radiation. The other options are less suitable because they do not match the required Radioactive contamination idea: The exposure to ionising radiation from a radioactive source.; The process of radioactive decay.; The emission of radiation from a stable nucleus..
Common mistake
Misunderstanding Ionising Radiation Effects
Students often confuse the effects of ionising radiation, thinking that all types of radiation have the same risk of causing cancer or mutations.
To fix this, students should study the specific properties and hazards of different types of radiation (alpha, beta, gamma) and understand how their penetration and ionising power affect their potential to cause biological damage.
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