Question detail
What is a key characteristic of 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 do not change shape.
- B. They can be reshaped multiple times.
- C. They become brittle.
- D. They decompose.
Answer
The correct option is They can be reshaped multiple times.. This answer is correct because it matches the approved learning objective to compare physical properties of glass, clay ceramics, polymers, composites and metals using information provided. (Chemistry only; WS 1.4, 3.5, 3.8) in the subtopic Ceramics, polymers and composites.
Explanation
The correct option is They can be reshaped multiple times.. They can be reshaped multiple times. is correct because it directly supports the approved learning objective to compare physical properties of glass, clay ceramics, polymers, composites and metals using information provided. (Chemistry only; WS 1.4, 3.5, 3.8). 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
Misunderstanding Material Properties
Students often confuse the properties of glass with those of clay ceramics, thinking they have similar physical characteristics.
To fix this, students should study the specific properties of each material, noting that glass is typically more brittle and transparent, while clay ceramics are more porous and can be shaped before firing.
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