Question 1: A company wants to design a lightweight, durable bicycle frame. Which material would be most suitable and why? (Mention at least two properties of this material.)

Answer: Aluminium is suitable because it is lightweight and strong. Its properties include good strength-to-weight ratio and corrosion resistance.

Question 2: A designer needs to create a heat-resistant spatula for cooking. Which material would be ideal and why?

Answer: A heat-resistant silicone or stainless steel would be ideal because they can withstand high temperatures without deforming.

Question 3: A new toy needs to be made from a material that is safe for children, lightweight, and easy to clean. Which material would you recommend and why?

Answer: A suitable material would be high-density polyethylene (HDPE) because it is safe, lightweight, and easy to clean.

Question 4: Design Brief: You are tasked with creating a protective case for a smartphone. The case must be lightweight, impact-resistant, and aesthetically appealing. Sketch a design for this case, labeling the materials you would use and their locations.

Answer: A sketch showing a slim, contoured case with a soft inner lining made of rubber (for impact resistance) and an outer shell of polycarbonate or silicone (for aesthetics and protection). Labels should specify these materials and their placement.

Question 5: Describe three factors you would consider when choosing a material for making outdoor garden furniture.

Answer: Durability against weather conditions, resistance to corrosion or rot, and ease of maintenance.

Question 6: Explain why recycled plastic might be a good choice for making reusable shopping baskets. Include at least two reasons related to material properties or environmental impact.

Answer: Recycled plastic is environmentally friendly because it reduces waste. It is also durable, lightweight, and resistant to moisture.

Question 7: Draw a simple cross-section of a drinking cup designed for hot beverages. Indicate the layers and materials used in your design.

Answer: A cross-section sketch showing an outer layer of heat-resistant plastic or ceramic, an insulating layer of foam or air between, and a smooth inner lining suitable for hot liquids.

Question 8: A manufacturer needs to produce a lightweight, disposable cutlery set. Which material would be most appropriate and why?

Answer: Polystyrene or polypropylene because they are lightweight, inexpensive, and suitable for single-use items.

Question 9: Think about designing a set of eco-friendly storage containers. What types of materials would be suitable and why? Mention at least two options.

Answer: Bamboo or biodegradable plastics, because they are sustainable, renewable, and break down naturally in the environment.

Question 10: You are asked to create a sketch for a children's toy that is safe, colorful, and durable. Sketch the toy, indicating the materials you would choose for different parts, and explain your choices.

Answer: A sketch of a toy (e.g., a stacking block set) with labels pointing to parts made from non-toxic plastic or wood, emphasizing safety, durability, and bright, child-safe paints.