Question detail
What happens to thermosoftening polymers when heated?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Using materials
Question
- A. They become rigid and cannot be reshaped.
- B. They soften and can be reshaped.
- C. They decompose and lose their properties.
- D. They remain unchanged regardless of temperature.
Answer
The correct option is They soften and can be reshaped.. This answer is correct because it matches the approved learning objective to distinguish thermosoftening polymers from thermosetting polymers in terms of behaviour when heated. (Chemistry only) in the subtopic Ceramics, polymers and composites.
Explanation
The correct option is They soften and can be reshaped.. They soften and can be reshaped. is correct because it directly supports the approved learning objective to distinguish thermosoftening polymers from thermosetting polymers in terms of behaviour when heated. (Chemistry only). This belongs to the subtopic Ceramics, polymers and composites within Using materials, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Ceramics, polymers and composites.
Common mistake
Confusing Polymer Types
Students often confuse thermosoftening polymers with thermosetting polymers, thinking both behave the same way when heated.
Remember that thermosoftening polymers can be reshaped when heated, while thermosetting polymers do not change shape and become rigid upon heating.
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