subjects · AQA · spec 8552
Design and Technology
3 curated decks for AQA 8552, every card linked to the moment it was explained. Preview one below.
sample deck
GCSE Design & Technology: Materials (video)
The material categories — woods, metals, polymers, papers, textiles, composites and smart materials — from a GCSE/A-Level D&T overview. Each card deep-links to the video.
What is the difference between physical properties and working properties of materials?
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Physical properties are the traits a material has before it is even used. Working properties are how a material behaves when it's manipulated or when forces are applied to it.
{Hardness} is the resistance to scratching or indentation, which is different from toughness.
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Hardness
Do hardwoods come from deciduous or coniferous trees?
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Deciduous trees (broad-leaf trees). Softwoods come from coniferous trees.
Why does oak require finishing when used with steel fixings?
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Oak contains tannic acid which will corrode steel fixings, so it needs to be finished to prevent corrosion of metals.
Is balsa a hardwood or softwood?
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Balsa is a hardwood, even though it is lightweight and soft. People often mistakenly think it's a softwood.
Why does plywood have an odd number of layers?
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So that the top and bottom grain direction is parallel, which contributes to its strength and stability.
Is MDF lightweight or heavy compared to other materials?
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MDF is actually heavy and very dense—heavier than many hardwoods. It is a common misconception that it is lightweight.
MDF is highly susceptible to {moisture} damage and expands when it absorbs water.
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moisture
What natural property makes cedar suitable for outdoor use?
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Cedar has natural resistance to decay and insect infestation, making it ideal for outdoor cladding, fences, and furniture.
What manufacturing process is used to make carbon fiber reinforced plastic and glass reinforced plastic?
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The lay-up lamination process, where fiber matting is pressed into a mold and resin is poured on top to fill the spaces. When the resin cures, it creates a hard shell-like structure.
What type of material is commonly used for the back of wardrobe backing?
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Hardboard, a thin manufactured board with a smooth surface.
What is chipboard typically finished with to improve its appearance in furniture?
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Veneers. Chipboard is unattractive on its own, so it's often veneered, especially in flat-pack furniture.
+22 more cards in the full deck.
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