tech

    Cards (122)

    • What is the purpose of Mr. Ridley's design and Technology revision session?
      To boost your grade in design and technology
    • How many episodes are included in the design and Technology revision?
      Six episodes
    • What are the topics covered in the six episodes of the revision?
      1. Plastics
      2. Hand tools
      3. Joining metals for sustainability
      4. Sustainability question
      5. Health and safety
    • What is the raw material that most plastics are made from?
      Oil
    • Why is it important to understand where oil comes from in relation to plastics?
      Because oil is a finite resource and takes millions of years to form
    • What happens to plastic when it is put into landfill?
      It will not biodegrade
    • What are the two major types of plastics?
      Thermoplastics and thermosetting plastics
    • What are the characteristics of thermoplastics?
      • Can be melted and reshaped multiple times
      • Easily recycled
    • What are the characteristics of thermosetting plastics?
      • Retain their form once heated and cooled
      • Difficult to recycle
    • What is an example of a thermosetting plastic used for electrical casings?
      Urea formaldehyde
    • What is a key property of polyester resin glue?
      It is waterproof and has good chemical resistance
    • What is acrylic known for in terms of its properties?
      Good impact strength and lightweight
    • What is polythene commonly used for?
      Shampoo bottles
    • What is PET known for?
      Excellent waterproofing and good moisture barrier
    • What is PVC commonly used for?
      Pipes and plastic window frames
    • What is ABS used for?
      High-quality toys like Lego
    • What is a key feature of 3D printing in relation to plastics?
      It builds up layers to form a solid object
    • What is PLA and how is it different from other plastics?
      PLA is made from plants and is biodegradable
    • What are the two important terms related to plastics that should be remembered?
      • Plasticity: Ability to change shape without cracking
      • Durability: Ability to withstand weathering and deterioration
    • What are the two main types of measuring tools used in the workshop?
      Vernier caliper and steel ruler
    • What is the accuracy of a Vernier caliper?
      Measures to 0.1 millimeter
    • What is the purpose of a coping saw?
      To make curved cuts in thin wood and plastic
    • What is a try square used for?
      To draw lines at 90 degrees to an edge
    • What is the function of a wood vice?
      To hold a piece of wood while working on it
    • What does a wood plane do?
      Shaves off thin strips of wood for a smooth finish
    • What is the difference between a slotted screwdriver and a posi drive screwdriver?
      Posi drive can apply a higher twisting force without slipping
    • What is the purpose of a marking gauge?
      To mark lines parallel to a straight edge
    • What is the use of a rasp?
      To shape wood with a coarse file
    • What is the function of a hacksaw?
      To cut metal and plastics
    • What is a center punch used for?
      To create an indentation for accurate drilling
    • What are tin snips used for?
      To cut thin sheet metal
    • What are the two categories of joining metals?
      1. Permanent joining (e.g., welding, brazing)
      2. Non-permanent joining (e.g., nuts, bolts, screws)
    • What is soldering?
      A method of joining metals using a low melting point metal called solder
    • What is the main characteristic of a weak join in soldering?
      It uses a low melting point metal
    • What are two tools you might use to work with aluminum?
      Steel ruler and a scriber
    • What is a hacksaw used for?
      To cut metal and plastics
    • What is the purpose of tin snips?
      To cut thin sheet metal
    • What are the two categories of joining metals?
      • Permanent joining: welding and brazing
      • Non-permanent joining: nuts, bolts, and screws
    • What is soldering and what type of metal does it use?
      Soldering is a weak join that uses a low melting point metal called solder
    • What tool is typically used for soldering?
      An electrically heated soldering iron
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