1. Introduction to Product Design & Ergonomics - 2.1 | Unit 1: Ergonomics & Everyday Objects | IB MYP Grade 9 Product Design
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2.1 - 1. Introduction to Product Design & Ergonomics

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Practice

Question Type Options Correct Answer Explanation Hint

1 The primary aim of user‑centered design is toβ€―. mcq Create artistic flair; Satisfy user needs; Lower manufacturing cost Satisfy user needs UCD prioritises user problems, not just looks or cost. Consider whose problems you solve.
2 Trueβ€―/β€―False: A heavier tool is always more durable and therefore better for the user. boolean True / False False Weight can add durability but often increases fatigue and risk of injury. Think of prolonged use.
3 Which metric best predicts whether a handle fits most hands? mcq Surface finish, Grip circumference range, Color palette Grip circumference range Size directly affects comfort and control. Size matters more than looks.
4 Fill‑in: The study of human body measurements applied to design is called . text – Anthropometry Ergonomic data relies on these measurements. Starts with β€œAnthro…”.

Challenge Problems
Problem: Choose any common kitchen utensil (e.g., spatula, peeler). List three ergonomic shortcomings, then sketch or describe two modifications that would improve each flaw.

Solution Outline:

Shortcomings: slippery grip, excessive wrist twist, heavy head.

Improvements: add silicone over‑mold, rotate handle 15Β° for neutral wrist, swap steel core for aluminum alloy to cut weight.

Hint: Focus on comfort, control, and safety.

Problem: Conduct a five‑minute observation of someone writing with a pen. Record posture, grip style, and pauses. Based on your notes, draft a one‑paragraph design brief for an β€œergonomic pen.”

Solution Outline:

Observation: user pinches hard, fingers redden, wrist bends.

Brief: Target students aged 12–18; pen must reduce pinch force via triangular cushioned grip, reposition weight to rear, and allow neutral wrist alignment.

Hint: Describe the who, what, and why clearly.