A designer developing safety equipment for workers in extreme environments needs to consider physiological ergonomics primarily to:
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A product design team has developed a premium home office setup aimed at hybrid workers. It includes an ergonomic office chair, a height-adjustable sit-stand desk, and a keyboard and mouse system designed to reduce strain and improve posture. The designers aim to meet ergonomic standards across a wide user range. See Figures 1, 2 and 3.
Figure 1
two ergonomic features of the chair that enhance comfort.
how adjustability in the chair supports a wider range of users.
What is psychology most concerned with in user-centred design?
A bank is positioning the screen and keypad of a new cash machine so that wheelchair users can operate it. A seated wheelchair user has a lower eye level and a shorter, lower forward reach than a standing adult.
Which anthropometric response follows?
Position the controls for the 95th percentile standing reach, so tall users are comfortable
Position the controls for the average standing adult, since most users stand
Position the controls within the lower, shorter reach of a seated wheelchair user, so they fall inside that reach envelope
Ignore reach, because a cash machine is used only briefly
The figure shows a smartphone. Two phones on sale have almost identical functions and prices, yet one greatly outsells the other. Its designers chose the colour, shape, materials, surface finish and the way the screen lights so that the phone appeals to a particular group of buyers.

Which human-factors area does this use of the senses to influence buying belong to?
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Practice IB Design Technology (First Exam 2027) Topic A1.1 Ergonomics with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for A1.1 Ergonomics and mirrors Paper 1, 2 style where relevant.
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