Product Design

• What is the focus of the unit 1.1 in Design and Technology?

  The focus is on materials and their applications.
• What should you develop by the end of unit 1.1?

  A knowledge and understanding of materials testing and mechanical properties.
• What are the two main categories of tests for mechanical properties?

  Simple workshop tests and scientific measured tests.
• Why is it important to remove variables when testing materials?

  To ensure that the results are comparable and fair.
• What is a Tensometer used for?

  It is used for tensile testing of materials.
• How is toughness tested using the Izod impact test?

  A notched piece of material is struck by a pendulum, and the energy absorbed is measured.
• What are the three common tests for hardness?

  Rockwell, Brinell, and Vickers pyramid tests.
• How does the Rockwell hardness test work?

  A preload is applied with a diamond indenter, followed by an additional load, and the distance is measured.
• What does the Brinell hardness test measure?

  It measures the diameter of an indent made by a steel ball under a preset load.
• What is the purpose of the Vickers pyramid test?

  It is used for very hard materials to measure hardness using a diamond pyramid.
• What does a bend test determine about a material?

  It determines how well a material can withstand cracking during bending.
• What does non-destructive testing (NDT) aim to detect?

  Internal defects or imperfections in materials.
• How does ultrasonic testing work?

  A transducer generates sound waves that are pulsed into the material, and reflected waves are recorded.
• What is the purpose of X-ray testing in materials?

  To inspect materials for internal defects using an X-ray beam.
• How is electrical conductivity measured using the four-point probe method?

  By calculating the resistance of the material sample using Ohm's law.
• How is thermal conductivity tested?

  A heat flow meter measures the heat flow through a material placed between temperature-controlled plates.
• What is the procedure for practical workshop tensile testing?

  A weight is placed on a length of material held in a clamp or vice.
• How is toughness tested in a workshop setting?

  By hitting the test material in a vice with a hammer to see how much impact it can withstand.
• What does hardness testing assess in materials?

  It assesses abrasive wear or resistance to surface indentation.
• How is malleability and ductility tested in a workshop?

  A test piece is bent to 90 degrees, and cracks indicate ductility or malleability levels.
• How is corrosion testing conducted?

  By exposing the material to environmental effects and visually inspecting for surface corrosion.
• What does electrical conductivity testing involve?

  Using a multimeter to measure resistance between probes attached to the material.
• How is thermal conductivity measured using a Bunsen burner?

  A thermometer measures the time taken to reach a set temperature after heating one end of the material.
• What mechanical properties are covered in this unit?

  Tensile strength, hardness, toughness, malleability, ductility, and conductivity.
• What is the significance of the Izod test?

  It is used to measure the toughness of materials.
• What types of tests are typically destructive?

  Most mechanical tests, such as tensile and hardness tests.
• What are the seven categories of materials covered in the syllabus?

  Metals, woods, polymers, glass, paper and board, ceramics, and composites.
• Why is it important to name specific materials in exam answers?

  To avoid generic terms and provide precise information.
• What should you do with diagrams in this unit?

  Attempt to replicate them in a simple and easy-to-understand way.
• What should you complete for the next lesson?

  Complete Q5 from AQA PROD3 2016.
• What will be discussed in the next lesson?

  The enhancement of materials.