Fig. 15 shows four items made from different materials. The item shown is commonly used in design and technology projects. It has been designed and manufact...
Question 1 Report
Fig. 15 shows four items made from different materials. The item shown is commonly used in design and technology projects. It has been designed and manufactured to meet specific requirements. The choice of materials and construction methods affects the quality of the finished product.
It works in rain and sun. It is safe to use.
The parts are joined with glue. It works well for this job.
The surface of the plywood can be improved by applying a polish. The dimensions of the product have been determined by the needs of the intended user.
(a) State the material classification of pine. [1]
(b) State the material classification of acrylic. [1]
Answer Details
(a) Pine is classified as a natural timber, specifically a softwood. [1]
Softwoods come from coniferous (cone-bearing) trees that are typically evergreen and fast-growing. Pine is widely used in furniture, construction, and school workshop projects because it is relatively inexpensive, easy to work with hand and machine tools, and has an attractive grain pattern. As a natural material, it is renewable and biodegradable.
(b) Acrylic is classified as a thermoplastic (a type of polymer / plastic). [1]
Acrylic (also known as PMMA, polymethyl methacrylate) is a synthetic, manufactured material. As a thermoplastic, it softens when heated and can be shaped using processes such as line bending and vacuum forming. It is transparent with excellent optical clarity, relatively lightweight, and available in a range of colours. It is commonly used for display cases, signs, light diffusers, and as a substitute for glass where shatter resistance is needed.
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