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Detailed Specification Overview


 

Year 11 Exam Content (20% of GCSE)

 

 

3.1.1. Manufacturing
 
Specification Content
Learning Outcomes
Range of Materials
and Their General,
Physical, Aesthetic
and Structural
Characteristics
Students should be able to:
 
·      demonstrate an effective working knowledge of the following materials in relation to their categories and the manufacture of technological products:
–      woods: hardwoods (mahogany, beech); softwoods (pine, redwood); and man-made boards (Medium Density Fibreboard (MDF), chipboard);
–      plastics: thermosetting plastics (melamine, polyester resin); thermoplastics (acrylic, rigid polystyrene); and
–      metals: ferrous metals and alloys (mild steel, stainless steel); and non-ferrous metals and alloys (aluminium, brass).
 

 
 
Specification Content
Learning Outcomes
Tools, Processes and
Techniques
 
Students should be able to:
 
 
 
 
 
·      demonstrate an effective working knowledge of how the following processes and techniques are used with the above materials to manufacture technological products;
 
·      demonstrate an understanding of the main features and applications of the following hand tools:
–      for marking out: rule, engineer’s square, try square, scriber, centre punch, spring dividers, marking knife and over head projector (OHP) pen;
–      for sawing: hacksaw, tenon saw and coping saw;
–      files: flat, round, and half-round profile, second cut and smooth cut;
–      bevelled edge wood chisels; and
 

 
 
Specification Content
Learning Outcomes
Tools, Processes and
Techniques
 
Students should be able to:
 
·      demonstrate an understanding of the main features and applications of the following machine tools:
–      pillar drill;
–      band facer;
–      pedestal polisher.
 
·      demonstrate an understanding of the following permanent joining methods:
–      soft soldering, brazing and mig welding;
–      common wood and plastic adhesives and their correct application;
–      wood joints (butt joints and dowel joints);
–      riveting; and
 
Appropriate
Methods of Joining
·      demonstrate an understanding of the following semi-permanent joining methods:
–      nuts and washers, bolts and self-tapping screws;
–      countersunk and round-headed woodscrews;
–      panel pins, oval and wire nails.
 

 
 
Specification Content
Learning Outcomes
Production Methods
 
Students should be able to:
·      demonstrate an effective working knowledge of the following production methods:
–      metals: wasting and fabrication;
–      plastics: wasting and fabrication; and
–      wood: wasting and joining (limited to the wood joints listed above).
 
Moulds and Jigs
 
·      demonstrate an understanding of how moulds and jigs are used for the vacuum forming and line bending of thermoplastic sheets.
 
CAM and CAD
·      demonstrate an understanding of the process of computer aided manufacture (CAM):
–      a file is generated using a computer aided design (CAD) software package; and
–      this computer file is used to make a product on a computer numerical control (CNC) machine.
 

 
 
Specification Content
Learning Outcomes
Finishing
Techniques
Students should be able to:
 
·      demonstrate an effective working knowledge of suitable finishing techniques for the following materials, taking account of their function, aesthetics and environment:
–      metal: painting, polishing, dip coating and galvanising;
–      wood: painting, varnishing and applying preservative stains; and
–      plastic: polishing.
 
Material Efficiency
 
·      reduce material wastage during manufacture, thereby maximising the use of materials to reduce cost.
 
Designers
 
·      analyse the work of other designers; and
 
·      discuss how other designers have researched, prepared specifications, developed ideas and reached a final outcome.
 
 
 
 
Learning Outcomes
Emerging
Technologies
 
Students should be able to:
 
·      demonstrate an understanding of developments in new technologies, with specific reference to nanotechnology and its everyday applications:
–      self-cleaning glass; and
–      nanocomposites in car bumpers.
 
Health and Safety
·      recognise common health and safety symbols and the use of appropriate personal protective equipment;
 
·      recognise the importance of safety when using workshop tools, equipment, machines and components; and
 
·      recognise potential hazards in products, activities and environments.
 

 
3.1.2 Electronics
 
Specification Content
Learning Outcomes
Construction
Techniques
 
Students should be able to:
 
·      identify the tools and equipment required to produce a reliable, functioning technological product; and
 
·      select appropriate modelling and construction methods to assemble electronic circuits.
 
Input–Process–
Output
 
·      demonstrate an understanding that electronic systems may contain input–process–output.
 
Units and
Measurements
·      apply an understanding of electrical units to measure current, voltage and resistance.

 
 
Specification Content
Learning Outcomes
Components
 
Students should be able to:
 
·      identify the following components by their circuit symbols and physical appearance:
–      batteries;
–      resistors;
–      variable resistors;
–      light dependent resistors (LDRs);
–      thermistors;
–      diodes;
–      thyristors;
–      transistors (NPN);
–      buzzers;
–      light-emitting diodes (LEDs);
–      bulbs;
–      motors; and
 
·      select appropriate components to meet the requirements of a circuit diagram.
 

 
 
Specification Content
Learning Outcomes
 
Conductors and
Insulators
 
 
Students should be able to:
 
·      demonstrate knowledge of the use of conductors and insulators;
 
Resistors
 
·      use the colour coding system to identify values of individual resistors; and
 
·      calculate the resistance of two or more resistors in series, using:
Rt = R1 + R2 + Rn.
 
Switching
 
·      demonstrate an understanding of the following types of switch:
–      toggle;
–      push button;
–      microswitch;
–      membrane;
–      slide;
–      reed;
–      single pole, single throw (SPST);
–      single pole, double throw (SPDT); and
 
·      demonstrate an understanding of the action of these switches by recognising and selecting according to application.
 

 
 
Specification Content
Learning Outcomes
Potential Dividers
 
Students should be able to:
 
·      use a potential divider to control voltage in a circuit.
LEDs
 
·      use LEDs in circuits; and
 
·      demonstrate knowledge and understanding of the use of current-limiting resistors to protect LEDs (no calculation required).
 
Thyristors
 
·      use thyristors in circuits; and
 
·      identify gate, anode and cathode from a diagram.
 
Transistors
 
·      use an NPN transistor as a switch in a sensing circuit; and
 
·      identify the base, emitter and collector from a diagram.

 
3.1.3 Mechanical Control Systems
 
Specification Content
Learning Outcomes
Input–Process–
Output
 
 
 
 
Students should be able to:
 
·      analyse and describe mechanisms in terms of input–process–output.
 
Construction
Techniques
 
·      build working models and products using resistant materials and discrete components.
 
Types of Motion
 
·      recognise and give examples of the following types of motion:
–      rotary;
–      linear;
–      oscillating; and
–      reciprocating.
 

 
 
Specification Content
 
Learning Outcomes
Components
 
 
 
 
 
 
 
 
 
 
 
Students should be able to:
 
·      identify the following components by their physical appearance and symbols:
–      wheel and axle;
–      gears;
–      cams;
–      followers;
–      levers;
–      belts;
–      pulleys; and
–      shafts.
Levers
 
·      explain the practical applications and uses of first, second and third class levers.
 
Power Transmission
 
·      use symbols to illustrate:
–      simple gear trains (maximum three gears);
–      round and V-belt systems;
 
·      demonstrate an understanding of how gear systems can be used to change speed and/or direction of rotation; and
·      calculate simple gear ratios (limited to three gears).
 

 
 
Specification Content
 
Learning Outcomes
Cams and Followers
 
Students should be able to:
 
·      understand plate cams (limited to eccentric, pear and heart); and
 
·      understand cam followers (limited to knife, roller and flat).
 
Safety
·      show an awareness of the need for precautions when dealing with moving parts.
 
Input–Process-Output
 
 
Proprietary Interface
 
·      show that computer control systems may contain input–process–output.
 
·      know the importance of the interface as a protection and connection device.
 
 
 
3.1.4 Computer Control Systems
 
Specification Content
Learning Outcomes
 
 
The Function and
Application of Flow
Charts and Symbol
Recognition
Students should be able to:
 
·      demonstrate knowledge and understanding of the use of flow charts and draw flow chart diagrams to describe a sequence of events, using the symbols for:
–      START/STOP;
–      OUTPUT;
–      PROCESS; and
–      DECISION.
 
Programmable
Control
 
·      apply knowledge and understanding of appropriate software to construct programmes which contain the following:
–      loops;
–      time delay;
–      decisions; and
–      increment/decrement.
 

 
3.1.5 Pneumatic Systems and Control
 
Specification Content
Learning Outcomes
Input–Process–
Output
 
 
 
Cylinders
 
 
 
 
 
 
Valves
 
Students should be able to:
 
·      show that a pneumatics system may contain input–process–output.
 
·      identify a single acting cylinder by its physical appearance and circuit symbol; and
 
·      use single acting cylinders (limited to two in any system).
 
 
·      identify a 3/2 valve by its physical appearance and circuit symbol; and
 
·      recognise the following types of actuator for a 3/2 valve:
–      roller trip;
–      push button;
–      plunger;
–      lever.
Logic, AND/OR
·      identify and use a shuttle valve in an OR circuit; and
·      connect two 3/2 valves to create an AND/OR circuit.
 

 
 
Specification Content
Learning Outcomes
Speed Control
 
 
 
 
Construction
 
Students should be able to:
 
·      use a unidirectional flow regulator to incorporate speed control into a system.
 
·      construct pneumatic systems using discrete components.
 
Safety
 
·      work safely when building and operating pneumatic systems; and
 
·      understand the dangers associated with:
–      unsecured hosing;
–      compressed air;
–      moving components.
 
 
 

Year 11 Design Assignment - Controlled Assessment (20% of GCSE)

 

13 hours total to complete assignment

  • 8 hours preparation and research under limited supervision - maximum three A4 pages
  • 5 hours to produce assessed work under informal supervision - maximum four A3 pages

Three tasks are provided each year, one of which will be chosen by Lisnagarvey High School.

Pupils will complete these tasks within their normal timetabled T+D classes. It is important that pupils attend the days on which the tasks are running.  These assessments will take place in the Spring of 2012. Letters will be sent out to inform you of the dates, when they are confirmed.

 

Year 12 Exam Content (20% of GCSE) 

 

3.2.2 Element 2: Mechanical and Pneumatic Control Systems
 
Specification Content
Learning Outcomes
General Concepts
Students should be able to:
 
·      explain the terms:
–      load;
–      effort;
–      fulcrum;
–      mechanical advantage;
–      velocity ratio; and
 
 
·      do simple calculations involving the above concepts.
 

 
 
Specification Content
Learning Outcomes
Transmission of
Motion Using Gears
 
Students should be able to:
 
·      demonstrate knowledge and understanding of the following types of gears and the factors involved in their choice for practical applications:
–      spur;
–      bevel;
–      worm;
–      rack and pinion;
·      demonstrate knowledge and understanding of applications for simple and compound gear trains (limited to four gears);
·      use given information to complete calculations involving simple and compound gear transmissions (using a maximum of four gears) for:
–      velocity ratio;
–      gear ratio;
–      transmission speeds; and
 
·      demonstrate knowledge and understanding of the use of an idler gear to change direction without affecting the overall ratio of a gear train.
 

 
 
Specification Content
Learning Outcomes
Other Transmission
Systems
 
 
 
 
 
 
 
 
 
 
 
 
 
Conversion of
Motion
 
Students should be able to:
 
·      demonstrate knowledge and understanding of the factors influencing the choice of:
–      flat belts;
–      toothed belts; and/or
–      sprockets and chains for practical applications; and
 
 
·      demonstrate knowledge and understanding of the use of jockey pulleys and motor mount adjustment to tension belts.
 
·      sketch, describe and compare simple cams and common followers (limited to knife, roller and flat); and
 
·      demonstrate knowledge and understanding of the conversion of linear motion to rotary motion and vice versa using:
–      eccentric, pear, heart and snail cams;
–      crank and slider mechanisms.
 

 
 
Specification Content
Learning Outcomes
Conversion of
Motion
(cont)
Students should be able to:
 
·      demonstrate knowledge and understanding of the use of screw threads to transmit motion; and
 
 
 
 
·      demonstrate knowledge and understanding of ratchet and pawl mechanisms.
 
Pneumatic
Principles
 
·      demonstrate knowledge and understanding of the relationship between the force of a piston in a cylinder, its bore diameter and air pressure:
force = pressure × area
where pressure is measured in N/mm2 (0.1 N/mm2 = 1 bar) and area is measured in mm2
(we acknowledge that while these are not SI units, they are the industry standard).
 

 
 
Specification Content
Learning Outcomes
Cylinders
 
 
 
 
 
 
 
Bidirectional and
Unidirectional Flow
Control Valves
 
Students should be able to:
 
·      identify a double acting cylinder by its physical appearance and circuit symbol; and
 
·      use double acting cylinders (limited to two per system).
 
·      demonstrate knowledge and understanding of the operation and application of the following flow control valves:
–      unidirectional (one-way restrictor valve); and
–      bidirectional (two-way restrictor valve).
 
 
 
 
Specification Content
Learning Outcomes
Systems and Control
 
 
 
 
 
Sensors: Feedback
Signal
 
 
 
 
 
 
 
 
 
Time Delay
 
 
 
Automatic
Reciprocation
 
Students should be able to:
·      demonstrate knowledge and understanding of the concepts of input, process and output and the importance of feedback in controlling systems.
·      demonstrate knowledge and understanding of the use of a range of 3/2 valves and 5/2 valves to produce controlled motion for semi-automatic and automatic circuits with the following actuators:
–      lever;
–      push button;
–      roller trip;
–      plunger; and
–      pilot.
·      demonstrate knowledge and understanding of the use of a reservoir and flow regulators to create a time delay.
·      design circuits with positional feedback to activate a pilot air operated 5/2 valve, controlling it to two double acting cylinders incorporating speed control (no more cylinders are required).
 

 

 

 

Year 12 Product Design and Manufacturing Project -  (40% of GCSE)

 

 30 hours total to complete assignment

 

  • 5 hours preparation and research under limited supervision 
  • 12.5 hours to produce design portfolio under informal supervision - maximum ten A3 pages (20% of GCSE)
  • 12.5 hours to manufacture product under informal supervision (20% of GCSE)

Three tasks are provided each year, of which one will be chosen by consultation between the teacher an.

Pupils will complete these tasks within their normal timetabled T+D classes. It is important that pupils have a good attendance record so as to be able to successfully complete the tasks to a high standard.

The quality of written communication (QWC) is also assessed in the portfolio, therefore a high level of spelling, punctuation, grammar and the use of technological language, as well as an overall  high level of presentation,  is necessary to achieve the highest marks.  
 
 

 
 
 

 
 
 
 


 

 

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