This is a complete list of a the write up sheets for your GCSE. Do not number or date pages until the end.
It seems a lot at first and not all will apply to everyone but all will need to do a core number of sheets.
You will have several months of lesson time and homeworks to do this.
You can...
Word process them using the paper provided with a border.
Design and print your own border.
Handwrite on the sheets provided.
0.55 * Contents/index
This sheet is a contents page and an index. You can only do this at the end when you have numbered all of the pages and actually finished all the written work and diagrams.
1.1 Problem / need
This sheet needs a few short statements explaining the need or purpose of what you intend to make AND if it were for real what it would be used for/who would use it and for what etc. This sheet and 1.2 below help set the scene for the marker.
1.2 Brief
This sheet needs a few short statement explaining what you are going to make. Possibly a couple of sentences.
1.5 * Initial Ideas
Say you are going to make an alarm. A few different methods of things that could set it off, a few different types/designs of box. You need to sketch AND briefly explain your ideas. (So you had no different ideas - invent some!)
1.75 * Alternative Ideas
Suppose you are going to make an alarm. Explain is some detail different methods you could use to make the alarm, different designs, different sensors. You must explain why you have selected the design that you have chosen. Why is that one better than your other ideas. Draw sketches, label details etc etc. (So you had no different ideas - invent some! so you do not know why you chose one design rather than another - invent some sensible reasons)
2.0 Research on materials
What could you have made the box out of? Wood - which type, metal, plastics or a combination? Explain the properties of each, the advantages of each? What sort of fastenings would you use to joint parts together?
2.2 Resistor colour code
Explain the resistor colour code - how would you work out the value of a resistor from the stripes on it?
2.25 * Resistors
What is a resistor, what does it do, what does it do in a circuit. Are there different types?
2.3 * Transistors
What is a transistor, , what does it do in a circuit. Are there different types? Write down the different formulas associated with working things out. How will or could you use them in your project?
2.4 * Inputs
This sheet is for an explanation of switches and sensors that you could use. Try to make your choices relevant. Which ones would be better, more suitable. Explain why. What sort might be used in a real life situation. Draw neat, coloured and labelled diagrams. You do not have to say exactly how they work but what they sense etc.
2.45 * Capacitors
What is a capacitor, what does it do, what does it do in a circuit. Are there different types? What is a µF (micro farad)
2.5 * Switches
This expands a little from sheet 2.4 What do switches do. How are they actuated(operated) What is a changeover switch, what does double pole mean etc.
2.55 Fastening Switches
How would you fasten in a switch into your case. Explain with diagrams the procedure for a round switch and a rectangular one. Why is it better, if possible, that switches are inserted from the inside out? How would you fasten a switch into a panel that was quite thick. This sheet is best done with lots of clear and labelled diagrams.
2.6 Astable from schematic copy
This sheet expects you to redraw a schematic view of an astable(flasher) circuit into a circuit layout with the pins in correct positions etc. It needs some labelling and explanation.
2.65 * 555 Astable
This sheet needs you to explain the basics about an astable circuit. What is it, what can it do, how can the timings be altered etc. here might one be used. (Often used to flash lights, make a buzzer go on-off-on-off etc. or to provide a ‘heartbeat for a clock type circuit.
2.7 Monostable from schematic copy
This sheet expects you to redraw a schematic view of an monostable(timer) circuit into a circuit layout with the pins in correct positions etc. It needs some labelling and explanation.
2.75 * 555 monostable
This sheet needs you to explain the basics about an monostable circuit. What is it, what can it do, how can the timings be altered etc. here might one be used. (Often used to time circuits, make a buzzer go when a switch is triggered. It is often the main and first circuit in a system. (After a latch if one is used.)
2.8 Latches
What is a latching circuit. What does a thyristor do. Draw out the circuit, show where the on switch goes, how is the circuit switched off. Where does the rest of the circuit go?
2.9 * Outputs
What sort of way s your circuit going to show that it has been triggered, operated etc. Describe how motors, lights, buzzers, bells, numeric displays, LEDs etc etc could be attached to your project. Which one are relevant to your work. What do they do? What sort of power requirements do they have?
2.95 * Leds
What is an LED. What colours, sizes, shapes are they available in. How would you connect one to a circuit? What electrical characteristics do they have? How do you tell the positive leg from the negative leg?
3.1 * Analysis of problem
To help you with your planning and research what do you need to find out. What bits of knowledge and information will help you plan more successfully? Explain this in your own words. No great technical detail is needed.
4.1 * Specification
Try for 20 facts, 20 details about your project from things such as ‘it must be finished for end Feb.’ to ‘the battery must be easy to replace’ to the alarm must sound for 15 seconds’. Try to include some measurable details that relate to your project. These are details that you are aiming your project at. Setting yourself targets. You may not meet them, you may exceed them.
5.05 * Sequence of operation etc
When you project is operated, triggered, in operation what happens? Explain this step by step.
5.1 Block diagram proposals
On this sheet you are required to show how the various stages connect/interact together. This is not to be done in circuit diagram form but in simple blocks with a line representing the signal passing from one stage to another. Some explanation will also be required.
5.2 * How case fits together/main proposals
This sheet requires you to draw out the main box - preferably an exploded view with some colours. You need to explain how it fits together, what goes where, how you get access to the various parts etc. Include dimensions where appropriate preferably in mm.
5.3 Main parts required
This is a list with explanations of the main components that you will need. some explanations will also help. Do this for the materials - the wood aspects of your work as well as the electronic. Do not list every small piece every resistor but in general - one monostable circuit. eg one box with an opening front, to allow access to the inside of the box.
5.4 * Detailed proposals / fine points
This page is to allow you to explain the fine details, trays that hold the circuits, corner reinforcing pieces, monostable circuits with connections to 3 trigger switches, small holes to allow switches to be neatly installed from the interior.
5.5 * Assembly - tasks needed to be done
A list of jobs or tasks that you need to do in order to finish your project. These should be in a logical order with some explanation.
5.6 * Circuit + how it works
As the title says. how the various parts and circuits all fit and communicate one to the other. This does not have to be very technical but a summary. What s the job, the function of each stage. Where does the signal go to, what happens to it along the way?
5.7 * Circuits - how to make a PCB
Explain how a printed circuit board (PCB) is made. Explain about the process from finding the circuit in a book to drilling the holes in the competed board. Include hazards of the etching chemicals, use of the computer etc
5.8 * Other circuits that could be used
A little difficult because for some circuits such a decade counter there is really only one circuit that will do the job. however you can draw timer circuits and astable circuits that do not use 555 timer chips but separate discrete transistors etc. We do not use them as they tend to be complicated and not as versatile as the chip based one. Programmable circuits can also be used but you would still have to prove that you know about existing circuits.
6.1 * Circuit plans + how it works
A large circuit drawing of your circuit - you can do this in several stages one for each circuit. Label what goes where etc and its function/job.
6.2 * Final plans
A large A3 sized drawing with labels, explanation, dimensions (mm), colours etc of what you intend/have made.
7.1 * Progress report
This is the only part of your write up that is like a diary. include some dates and what you did. You could do it month by month etc. Do not make it too dry and boring.
7.2 * Tests done
Describe any tests or trials that you have done. What happened, what did you do s a result. These can be electronic tests or ones of the case. Trials, experiments etc.
7.25 Tests logical fault finding etc
This page is where you need to explain how you would sort out your project f it did not work. How would you tackle this. Do this in a step by step manner. ie 1 Is it switched on? 2 Is the battery ok? 3 Are there any loose wires etc etc.
7.3 * Modifications + changes made
What change to the original design have you made? What improvements have you made? You must describe them, include labelled diagrams etc. From the smallest to the biggest change, from changes to the case to changes to the electronics include them all.
7.4 * Evaluation
On sheet 4.1 you had to write about what your project should do, how long, how big, how loud etc etc. You have to think about these previous statements. does your project do better or worse that what you planned it to do. You need to explain your answers. Include as many measurements and comparative numbers as you can. Which parts of your project are well made, which parts could have been better made. Explain your self.
8.1 * Industrial practices
If you were going to make 1000s of you project what changes would you need to make to the design? If it was to be sold as a toy would it meet Health and Safety rules. What is the difference between mass production and craft production? What is batch production. how many skills have you had to learn to make your project?
Cover sheet filled in and signed
The cover sheet is an official GCSE form in which you put your name, what you project is, books you have used etc. You must sign it. These will be sorted out towards the end.
Sheet numbers followed by a * are essential as they are a main part of the marking scheme. Miss one of these sheets out and you get a G for that section. Do it well and you get an A* for that bit. The As, Bs etc are then averaged out for design work, the same for construction and a final score given out of 90. This figure is 60% of your final grade. Doing sheets like this alows the marker to see exactly what you have done - all the specification is together etc.
Some parts of your work may need more than one sheets. Some sheets may not be applicable for some projects. Some projects may need sheets not listed here. You cannot do too much!
Finish date is start of March
Remember to get some blank sheets before half term.
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