The Steady Hand Game Name .............................................................. Form ............... Group ............... Technology Writing Tips POINT EVIDENCE & EXPLORE EXPLAIN ANALYSE DEVELOPMENT Looking at a single aspect of a product (something it has to do). This generates the starting point. You now need to use either: Prior Knowledge, Experience, Research or Ask a friend why the point is important. Now with what you have found explain in detail using Who, What, Why, When, How or Because your point. With your point now explained analyse and express your opinion whether it is good or bad. From what you now evidenced, explored, explained and analysed is there anything you could improve regardless of if it is a good or bad point. When this symbol appears it is telling you that you Will be using maths skills on this page. It could be: • Using formulas • Timetables/division • Measuring/scale/dimensions When this symbol appears it is telling you that you will have some form of assessment on this page. It could be: • Verbal • Peer • Self assessment. Learning Objectives •The need to investigate the background to a problem •How to select appropriate components to build an electronic circuit •The importance of planned manufacture •The need to build models to evaluate design ideas •How to improve a product by evaluation •The need to research before making a product. Key words Health & Safety, Resistor, L.E.D (light emitting diode), thyristor, Battery clip, cell, current, voltage, ohms law, amps, electronic Symbols, circuit diagram, modelling, solder, soldering iron, isometric drawing, CAD, CAM, Product analysis. Remember: Draw with a pencil. Write with a pen. Create your own front cover using graphic techniques. Homework: Create a general Health & Safety Poster for the workshop. Teacher feedback: Design Brief Design situation Task Analysis Electronics Theory Voltage is the electromotive force ( _ _ _ ) that exists across the terminals of a battery. It is also known as potential difference ( _ _ ). It is measured in _ _ _ _ s (V) and designated with the letter _. Current is the rate of flow of electrical _ _ _ _ _ _ . It is measured in _ _ - _ _ _ _ s (A) and designated with the letter _. Power is the rate at which _ _ _ _ is done. It is measured in _ _ _ _ s (W) and designated with the letter _. P= x Resistance limits the current in a circuit. It is measured in _ _ _ s () and designated with the letter _. Ohm’s Law is the relationship between voltage, _ _ _ _ _ _ _ and resistance. To find out the voltage use: V= x To find out the current use: I = ____ To find out the resistance use: R = ____ Illustration Description Y7 Components revision - What can you remember? Symbol Illustration Y8 Components – New learning! Description Symbol Y8 Steady hand game circuit Homework: Soldering Safety instructions Resistor Colour Codes Chart for working out the value of fixed resistors: (Fill in the missing information and colour in the boxes to make it easier to understand the table) Colour 1st band 2nd band Gold Silver 3rd band Tolerance 0.1 ± 5% 0.01 ± 10% ± 1% Black 0 0 Brown 1 1 0 ___ _ 2 00 3 _ ___ Yellow 4 _ 0000 Green _ _ _____ ____ 6 _ ______ Violet _ _ _______ ____ 8 8 White 9 9 Exercise Work out the following resistor values: •Brown, Black, Red, Gold = _______________________ •Yellow. Violet, Black, Gold = _____________________ •Brown, Grey, Green, Gold = ______________________ •Red, Red, Yellow, Gold = ________________________ What would be the colour order of the following values: •470 ±5% = ________________________________ •330 ±5% = ________________________________ •560 ±5% = ________________________________ Using illustrations and annotation. Soldering Plan for Steady hand game Y8 Electronics Revision Y8 Electronics test 1.In what unit is voltage (EMF) measured? (1 mark) 2.What is the unit ampere used to measure? (1 mark) 3.Draw the Ohm’s Law triangle to show the relationship between voltage (V), current (I) and resistance (R). (2 marks) 4.Resistance is measured in ohms. Draw the symbol that represents ohms. (1 mark) Name the following components: 5.Name the following components: a) b) c) d) e) 6.If ‘k’ is the symbol for kilo (1000), how would you re-write 5000 watts in a shorter form? (1 mark) 7.What do the letters LED stand for? (1 mark) 8.a) Copy and label the ‘anode’, ‘cathode’ and ‘flat’ parts on the LED below: (3 marks) b) What is the ‘flat’ on the rim of the LED used for? (1 mark) 9.The three leads on a thyristor are labelled ‘a, ‘k’ and ‘g’. What do these letters stand for? (3 marks) 10.What are the colour bands on a resistor used for? (1 mark) (Total 20 marks) Marks out of 20: Level : Spider diagram of initial thoughts Themes Now tell me which theme you have chosen and reason why. Analysis of existing products Product analysis homework Specification Technology writing tips: Isometric drawing skills Using the isometric grid below practise drawing letters and or numbers using isometric projection . For example: Rendering skills Using the shapes below practise rendering the shapes using the instructions to the right of them. Now draw some shapes of your own below and render them using the skills you have just learnt. Design Ideas for the base of your steady Hand Game (You must record what the teacher has said) Teacher verbal feedback: Design Ideas (continued) Use the technology writing tips to help you annotate your developed ideas. Include how you would like the wiggly wire to look. Development 1. 2. Technology writing tips: Development (continued) 3. 4. CAD/CAM Evidence of your use of Computer Aided Design/Computer Aided Manufacture. (Staple/glue in here! ) Peer Assessment: Title of work being assessed: Two strengths: 1. 2. LEVEL……………. Suggestion to improve: 1. Peer Assessed by: Title of work being assessed: Two strengths: 1. 2. LEVEL……………. Suggestion to improve: 1. Peer Assessed by: