Question 1: Describe the key properties that make wood a suitable material for furniture. Mention at least three properties.

Answer: Wood is strong, durable, and has a good strength-to-weight ratio. It is also easy to work with, can be shaped and finished well, and is a natural insulator.

Question 2: A company wants to design a waterproof outdoor table. Which material would be most appropriate: plastic, metal, or wood? Explain your choice.

Answer: Plastic or metal would be most appropriate because they are waterproof and resistant to environmental elements. Wood is less suitable unless it is treated or sealed.

Question 3: You need to design a lightweight, strong frame for a bicycle. Which material might you choose and why?

Answer: Aluminium or carbon fibre would be suitable as they are lightweight and strong, making them ideal for bicycle frames.

Question 4: Sketch a design for a protective casing for an electronic device that needs to be heat resistant. Label the key features of your design.

Answer: A correct sketch would show a casing made from a heat-resistant material such as silicone or ceramic. The casing should have ventilation holes or slots for heat dissipation, and a secure lid or cover.

Question 5: Explain how the properties of rubber make it useful for making grips on tools.

Answer: Rubber is flexible, non-slip, and has good grip properties. It also absorbs shocks, making it comfortable to hold.

Question 6: Design Brief: You are tasked with creating a reusable water bottle for outdoor use. Which material would you choose and why? Sketch your design and label the material used.

Answer: A suitable material is high-density polyethylene (HDPE) or stainless steel because they are durable, lightweight, and resistant to impact and corrosion. The sketch should show a bottle shape, a screw cap, and labels indicating the material.

Question 7: Identify a material that is both recyclable and strong. Describe a product that could be made from this material.

Answer: Recyclable and strong materials include aluminium or certain plastics like PET. A product could be a reusable water bottle or packaging for food.

Question 8: Explain why glass might be chosen over plastic for packaging products that require a high-quality appearance.

Answer: Glass has a premium look and feel, is transparent, and does not stain or stain easily. It also gives a sense of quality and is recyclable.

Question 9: Sketch a plan for a lightweight, foldable camping chair. Indicate the materials used for the frame and fabric. Label your sketch clearly.

Answer: The sketch should show a frame made of lightweight metal such as aluminium, with fabric for the seat and backrest. Labels should specify the materials for each part.

Question 10: Describe two properties of metals that are important when designing kitchen utensils.

Answer: Metals are good conductors of heat and electricity, and they are strong and durable, able to withstand repeated use.