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Electricity Electricity is a very practical subject although some of the concepts can be hard to grasp at times. It is difficult to go back and have another go at circuit building if you do not have the necessary equipment at home ,most people don’t. Here is a link to some free software that will allow you to make circuits on your computer. Do let me know what you think. http://www.yenka.com/en/Yenka_Basic_Circuits/ What is electricity? Here is an introductory video on what electricity is. you may need to watch it several times
Electrical resistance the amount of electricity flowing around a circuit is called an electrical current. Like a current this can be used to do work such as light up a light bulb or turn a motor. In a river this is the movement of water particles. When we are talking about electricity, the particles that are moving are called electrons and they are very much smaller that water particles. In a river there are parts that reduce the flow of the river such as a narrowing of the riverbed. In an electric circuit, there can also be parts that reduce the flow of electrons. this is known as electrical resistance This video is how a gentleman by the name of George Ohm discovered the link between the flow of electricity, the resistance and voltage. some parts are difficult to understand but focus on the bits you do.
Know which materials conduct electricity. Know why a switch works. Know what some circuit components do. Know why we use symbols to draw circuits. Know the symbols for circuit components. Know how to draw circuit diagrams. Know that electrical devices will only work if they are part of a complete circuit Know and that each part of the circuit must be a conductor of electricity Know the term in series Know how to construct series circuits Know how changing the number or type of components in a series circuit can make bulbs brighter or dimmer Know the relative brightness of bulbs in series circuits using up to 3 bulbs and 3 cells Know that normal brightness describes one bulb lit by one cell. Other circuits can be compared with this. Know the difference between a series and parallel circuit. (Know the relative brightness of bulbs in parallel circuits) extension Know how the length of a wire affects the brightness of bulbs in a circuit. Know how the thickness of a wire affects the brightness of bulbs in a circuit. Know why changing the wire makes a difference. Know how to interpret and draw circuit diagrams where the components are connected in series Know how to recognize a short circuit and be aware of the safety implications
Electroplating Electroplating is an example of using electricity for other things than heating or lighting. It is used in a wide variety of industries from making jewelry to protecting
Renewable energy resources in KentBelow are some links that will help you get started. These 2 links are to some documents that use a lot of difficult words, however you might like the diagrams and maps in them. Kent-Renewable-Energy-Part-1-April-2012-Updated-Version-Final Kent-Renewable-Energy-Part-2-April-2012-Updated-Version-Final The Map at this link will allow you to zoom in to a particular area of the UK and specify what renewable energy resource you want to look for. http://www.renewables-map.co.uk/windfarm.asp?Status=1&mycompid=0 The links below are on wind farms specifically the Whitstable wind farm en.wikipedia.org/wiki/Kentish_Flats_Offshore_Wind_Farm www.kentonline.co.uk/kent-business/county-news/wind-farm-extension-begins-36342/ and the one off Thanet en.wikipedia.org/wiki/Thanet_Wind_Farm corporate.vattenfall.co.uk/projects/operational-wind-farms/thanet/ www.bbc.co.uk/news/uk-england-kent-11395964 www.telegraph.co.uk/news/earth/earthnews/8018828/Worlds-largest-offshore-wind-farm-opens-off-Kent.html
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