The application of such a circuit involves calculating the resistor values to correspond to the required midpoint voltage. How science works is integrated throughout, with additional online activities offering comprehensive guidance and support. Potential dividers varying the brightness of a light. For all gcse examinations by johnson, keith and a great selection of related books, art and collectibles available now at. Gcse physics index page n links to all revision topics. This resource has been designed for use with cambridge igcse physics, but could be used for any physics course. Gcse physics teaching notes and resources by mike walker. Gcse physics ocr potential dividers flashcards in gcse.
Edexcel revision guide cgp gcse physics 91 revision ebook. Gcse physics specification specification for first. Alevel physics advancing physicspotential dividersworked solutions. Here you will be able to download resources for gcse physics. Physics a level potential divider question the student. Since i wrote my last posts about the new gcses here and here ive had several people get in touch to seek advice or ask what we are doing. Buy my book to help you memorise all the equations for gcse physics or combined science, for aqa. Publishers association educational sales council sales and market share statistics, may 2019. Aqa as physics unit 1 20th may, unit 2 9th june 2014 gcse physics exam question help asap aqa physics p1p2p3 24th may16th june official thread potential divider equation for aqa a level physics electric potential.
Potential divider and transducers potential divider the potential divider is a line of resistors in series that are used to give different voltages in parts of an electronic circuit. A potential divider, or potentiometer, consists of a number of resistors, and a voltmeter. These will prove very helpful during exams and are an excellent tool for revision. Gcse aqa lesson plans overview p1 lesson plans p2 lesson plans p5 lesson plans dynamics p5 lesson plans statics. Most students take, and should continue to take, the equivalent of at least two gcses in science.
This website and its content is subject to our terms and conditions. Igcse physics potential dividers teaching resources. The national grid the powerpoint walks through the components of the national grid and introduces stepup and stepdown transformers. Suitable for both concept and contextled approaches, this revision guide is edexcels own resource for the 2008 edexcel gce physics specification.
Potential dividers and how to divide the input voltage to produce an output voltage which is lower than the input voltage. Gorillaphysics grade 9 and a physics 1,667 views 5. We provide a wide range of qualifications including academic. These booklets of text and questions provide a comprehensive set of revision notes for the final examinations. If you appreciate the help, consider tipping me to keep me going. Sen learners and the new science gcses fiendishlyclever. Kerboodle provides a bank of teaching material for running creative and effective lessons. Buy grade 91 gcse physics aqa revision guide with free. Revision videos by a students from snaprevise edexcel specific revision videos available best revision websites. Edexcel a level physics, student book 1 by mike benn, graham george english march 27th, 2015 isbn. Pearson edexcel international gcse physics 4ph0 paper 2p pearson edexcel level 1level 2 certificate physics kph0 paper 2p. Edexcel a2 physics revision guide books pics download. Ldrs, mosfets and potential dividers sensory ciruits gcse and a level physics revision duration.
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Interactive notes, tests and more from bbc bitesize. Electricity transmission at high currents would encounter a large resistance in the transmission wire and therefore lose a lot. It explains calculations, geometry, trigonometry, graph skills and handling date, with clear study notes and stepbystep examples in the context of physics. This means the larger the resistor, the greater the voltage needed across it for the same current to flow. Electricity is generated in power stations of various kinds ones that burn fossil fuels, nuclear fuelled power stations, hydroelectric etc.
Gcse electricity revise the national grid power network. It is based on the principle that the potential drop across a segment of a wire of uniform crosssection carrying a constant current is directly proportional to its length. The following folders contain lesson plans for gcse ocr 21st century physics 2014 and gcse aqa physics 2016. Achieve the highest grades for the 91 course including free revision app. This brilliant cgp book covers all the maths skills needed in as and alevel physics the use of maths is required for up to 40% of the marks in the final exams and assessments. Space physics physics only all three science specialisms biology, chemistry and physics are taught in units throughout years 10 and 11. Qes physics department ks4 electricity and magnetism 10 topic outline file. Customized coursework help has never been that accessible. Physics alevel revision notes on kirchoffs laws and potential dividers. Buy gcse physics revision guide and exam practice book for all boards.
This is the answer video for the gcse physics exam question on potential dividers. Gcse physics 1 science at key stage 4 gcse science often called core or single science is th e single qualification that covers the statutory programme of study for science at key stage 4. Gcse physics revision guide and exam practice book for all. Electricity matters gcserevision, physics, electricity. A potential divider pd, also known as a voltage divider, is an electrical circuit, which divides the voltage between the ground rail and power rail. This blog gives overview for each topic in physics for gcse students. Physics paper 2 discussion thread help physics potential divider concept. Electricity generation, the national grid pass my exams. Written by experienced examiners, it features guidance from the people who write and mark exam papers and draws on real exam data from edexcels resultsplus service. Aqa gcse 91 physics 2 paper 2 separate science past exam. Tes global ltd is registered in england company no 02017289 with its. At the end of the course pupils will be awarded with three separate qualifications, each equivalent to one gcse certificate graded 19.
Potential dividers alevel physics help edexcel gcse combined science. This fantastic cgp revision guide is perfectly matched to the higher level grade 91 aqa gcse physics course. Two resistors divide up the potential difference supplied to them from a cell. Potential divider definition, aqa physics the student room.
Gcse physics science revision covering electricity, the national grid, power stations, transformers, changing currents, nuclear power. Students book revised edition by johnson, keith isbn. Edexcel and btec qualifications come from pearson, the worlds leading learning company. In contrast with using a variable resistor in series with the light bulb and the source pd, the use of a potential divider enables the current through the light bulb to be.
The voltage read by the voltmeter is determined by the ratio of the resistances on either side of the point at which one end of the voltmeter is connected. Power stations produce electricity at high currents. These are used in particular with ldrs and thermistors to allow only a certain amount of p. They can be used as audio volume controls, to control the temperature in a freezer or monitor changes in light in a room.
The division of voltage is proportional to the values of the series resistors across it. The graph shows how the resistance, r r, of a metal resistor and the resistance, r th, of a thermistor change with temperature figure 8. From wikibooks, open books for an open world advancing physics. The national grid system is the network of cables which transport electricity from the power stations in britain to homes, factories and other places that require it. Coursework help provided by best academic writing service. So if the top resistor had 70% of the resistance, what % of the voltage would it have. Alevel physics advancing physicspotential dividers. Original post by aqa alevel physics textbook a variable potential divider can be used to vary the brightness of a light bulb between zero and normal brightness figure 3. Ccea physics past papers attached is a complete set of past papers for ccea double award physics past papers for both higher and foundation.
Potential as charge flows around a circuit it uses up its energy its electrical potential energy and turns it into other forms, such as heat and light. Test your knowledge of the national grid in this gcse physics quiz. Edexcel a level physics, student book 1 books pics. This student book has been written by experienced teachers and subject experts specifically for the latest aqa gcse science specification, providing differentiated content to support, stretch and challenge all abilities. Currentpotential difference graphs are used to show how the current through a component varies with the potential difference across it. Voltage dividers use two resistors in series to split the p. I think i chopped up someone elses ppt from tes to make the theory lesson. Topics common to paper 1 and paper 2 topic 1 key concepts of physics students should. Buy my book to help you memorise all the equations for gcse physics or combined science, for aqa, ocr a and b, edexcel and eduqas. Please dont forget to leave a like if you found this helpful. Everyday low prices and free delivery on eligible orders. The national grid is an electricity transmission network which spans the whole of the united kingdom. The output voltage can then be calculated using the following equation.
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