OVERALL KNOWLEDGE

• What are deciduous trees?

  Trees that lose their leaves annually
• Name an example of a deciduous tree.

  Oak
• What is oak wood commonly used for?

  Furniture and flooring
• What is a characteristic of beech wood?

  Strong and smooth
• What is mahogany known for?

  Rich color, used in high-quality furniture
• What is the grain structure of hardwoods from deciduous trees?

  Tight and dense, making them durable
• Why are deciduous trees considered expensive?

  They are slow-growing, adding to their strength
• What is the relevance of hardwoods in design technology?

  Ideal for long-lasting, high-quality products
• What are coniferous trees?

  Evergreen trees that keep their needles
• What does the term "coniferous" refer to?

  Cone-bearing seeds
• Name an example of a coniferous tree.

  Pine
• What is cedar wood known for?

  Naturally resistant to decay
• What is spruce wood commonly used for?

  Musical instruments and construction
• What is the grain structure of softwoods from coniferous trees?

  Open and less dense than hardwoods
• Why are coniferous trees considered more sustainable?

  They are fast-growing
• What is the relevance of softwoods in design technology?

  Cheaper and more sustainable for mass production
• What are thermoforming plastics?

  Plastics that soften when heated
• What is the origin of thermoforming plastics?

  Derived from crude oil through polymerization
• Name an example of a thermoforming plastic.

  Acrylic
• What is polystyrene commonly used for?

  Lightweight packaging
• What is a key feature of thermoforming plastics?

  Recyclable, environmentally preferable
• What are thermosetting plastics?

  Plastics that cannot be reshaped after heating
• What is epoxy resin used for?

  Adhesives and coatings
• What is a key feature of thermosetting plastics?

  Heat-resistant but non-recyclable
• What are ferrous metals?

  Metals containing iron
• What is a characteristic of mild steel?

  Strong but rusts easily
• What is cast iron used for?

  Cookware
• What is a key feature of ferrous metals?

  Require protective finishes to prevent rust
• What are non-ferrous metals?

  Metals without iron
• What is copper commonly used for?

  Electrical wiring
• What is aluminum known for?

  Lightweight and corrosion-resistant
• What is a key feature of non-ferrous metals?

  Do not rust, ideal for long-lasting products
• What are alloys?

  Mixture of two or more metals
• What is brass made from?

  Copper and zinc
• What is stainless steel known for?

  Resistant to rust
• What is the relevance of alloys in design technology?

  Tailor materials to specific needs
• What are the SIX Rs in design technology?

  • Rethink: Change product design for less impact
  • Refuse: Avoid high-cost materials
  • Reduce: Use fewer resources
  • Reuse: Design for multiple uses
  • Recycle: Ensure materials can be repurposed
  • Repair: Make products easy to fix
• What is Life Cycle Analysis (LCA)?

  Assessment of a product’s environmental impact
• What is the first stage of Life Cycle Analysis?

  Raw material extraction
• What is assessed during the manufacturing stage of LCA?

  Energy and waste produced during production