Question 1: Identify three key purposes of creating a prototype in the design process.

Answer: To test the functionality of the design, to identify potential improvements, and to evaluate user experience.

Question 2: Describe the main differences between a mock-up and a working prototype.

Answer: A mock-up is a non-functional model used for visual or ergonomic evaluation, while a working prototype functions as the final product to test performance and usability.

Question 3: Explain why it is important to test a prototype with potential users before final production.

Answer: Testing with users provides feedback on usability, identifies issues or improvements, and helps ensure the final product meets user needs.

Question 4: Design a simple prototype for a new ergonomic handle for a kitchen tool. Include a sketch and label key features such as grip surface, shape, and any supportive structures.

Answer: A sketch showing a handle with an ergonomic, contoured shape for comfortable grip, textured surface for slip resistance, and possibly a supportive finger indent or ridge. Labels should clearly identify these features.

Question 5: List at least four materials suitable for creating a prototype of a plastic container lid and justify your choices.

Answer: Foam board (easy to cut and shape), cardboard (cost-effective and readily available), plastic sheets (closer to final material), and 3D printing filament (for detailed and precise features).

Question 6: Outline the steps you would take to develop a prototype for a new type of portable phone stand.

Answer: Research user needs, create initial sketches, select suitable materials, build a rough model, test the prototype for stability and usability, gather feedback, and refine the design accordingly.

Question 7: Sketch a concept for a collapsible water bottle. Focus on how the different parts will fold or extend.

Answer: A sketch showing a bottle with segmented sections that fold into each other, a flexible body material, and a locking mechanism to secure the bottle in expanded position. Labels should indicate folding joints and locking features.

Question 8: Describe how rapid prototyping techniques, such as 3D printing, can speed up the development of a new product.

Answer: Rapid prototyping allows for quick creation of physical models from digital designs, enabling faster testing and modifications without the need for traditional manufacturing processes.

Question 9: What are some common limitations of early prototypes, and how can these issues be addressed in later stages?

Answer: Limitations include material constraints, scale inaccuracies, and simplified features. These can be addressed by using more suitable materials, scaling models accurately, and refining details in subsequent prototypes.

Question 10: Design a plan for testing a prototype of a new children's chair to ensure it is safe and comfortable. Include what aspects you would evaluate.

Answer: Evaluate stability by testing tipping resistance, check for sharp edges or pinch points, assess comfort through user feedback, test the durability of joints and materials, and observe ease of assembly or adjustment.

Question 11: Draw a rough sketch of a prototype for a reusable shopping bag that can be folded into a compact size. Include any features that enable folding or compact storage.

Answer: A sketch illustrating a bag with fold lines, a foldable handle or section, and possibly a small pocket or strap to secure it when folded. Labels should identify folding lines and storage features.