Question 1: Describe three physical properties of metals that make them suitable for constructing structural frameworks.

Answer: Metals are strong, durable, and have high tensile strength, allowing them to support weight and withstand forces without breaking. They are also malleable and ductile, meaning they can be shaped or stretched without breaking.

Question 2: Explain why plastics are commonly used for consumer products like bottles and containers.

Answer: Plastics are lightweight, resistant to corrosion, and can be easily moulded into various shapes, making them ideal for manufacturing bottles and containers.

Question 3: Identify and explain two disadvantages of using glass as a material for product containers.

Answer: Glass is fragile and can break easily, posing safety hazards. It is also relatively heavy and can be more expensive to produce and transport compared to plastics.

Question 4: Draw a simple cross-section of a composite material showing its two main components and label them.

Answer: A correct sketch would show a layered structure with one layer representing the reinforcing material (such as fibres) and another representing the matrix material (such as resin). Labels should clearly identify these components.

Question 5: A company wants to design a lightweight, durable bicycle frame. Which material would you recommend and why?

Answer: I would recommend aluminium alloy because it is lightweight, strong, and resistant to corrosion, making it suitable for a durable bicycle frame.

Question 6: Design Brief: Create a concept for a protective case for a smartphone that is both lightweight and shock-absorbent. What material would you choose and why?

Answer: I would choose rubber or silicone because they are lightweight and have excellent shock-absorbing properties, protecting the phone from drops and impacts.

Question 7: Sketch a design for an ergonomic handle made from a material that provides a good grip. Include annotations to explain your choice of material.

Answer: A correct sketch would show a handle with a contoured shape for comfortable grip, possibly with textured surface details. Annotations should state the use of rubber or silicone for grip and comfort.

Question 8: Compare the properties of timber and plastic for use in making furniture. Which would be more suitable and why?

Answer: Timber is strong, durable, and has a natural aesthetic, making it suitable for high-quality furniture. Plastic is lightweight and inexpensive but may lack the strength and appearance of timber. Timber is generally more suitable for premium furniture.

Question 9: Identify a material that is transparent, lightweight, and easy to mould. Provide a real-world example of a product made from this material.

Answer: Polycarbonate is transparent, lightweight, and easy to mould. An example is safety goggles or transparent protective shields.

Question 10: Design Brief: You need to create a lightweight, eco-friendly shopping bag. Which material would you choose and what are its key properties? Sketch your design plan and annotate the material choice.

Answer: I would choose jute or hessian fabric because they are biodegradable, strong, and eco-friendly. The sketch should show a simple bag with handles, and annotations should explain the natural fibre's strength and environmental benefits.