Practice IB Design Technology (First Exam 2027) Topic A3.1 Material Classification and Properties with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for A3.1 Material Classification and Properties and mirrors Paper 1, 2 style where relevant.
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The figure shows a metal spring being heated with a flame. The spring had previously been stretched out of shape, and as it is heated it pulls itself back into its original coiled form without any force being applied. What class of material is this, and what is happening?
Which of the following best describes a physical property?
Which of the following best describes a smart material?
Which of the following metals would most likely be selected based on aesthetic appeal (a polished finish) and low density?
The figure shows a cast iron frying pan. The handle is cast as part of the pan, in the same cast iron, and after a few minutes on the hob it becomes too hot to touch. A competing pan of the same shape has a polymer handle, which stays cool enough to grip. Which material property explains the difference?