Understand how energy can travel and transfer from one form to another calculate the efficiency of a machine or process calculate the gravitational potential energy and kinetic energy of a body work out the maximum speed of a falling body understand the term work done and how forces can do. The first figure or page number always refers to the gcse physics book. In this blog i hope to clarify why the changes have been made and how to teach using the new model. How does a power station generate electricity some power stations use a primary energy source to heat water. Each chapter contains core material valid for all syllabuses. Work is only done by that part of a force in the same axis as the displacement of the object. Fossil fuels fossil fuels and nuclear power gcse physics single. So, if two forces each do 10 j of work, but force f 1 does this work in 1 minute while f 2 does it in two minutes, f 1 has more power because it did the same work in less time power is represented by the capital letter p, and is measured in watts, w note that the symbol.
Power stations generating electricity wjec gcse physics. Howard dodd has worked as an alevel physics principal examiner writing exam papers and supervising marking for over twenty years being employed by ocr, aqa and edexcel. Comparison of methods of generating electricity gcse physics revision notes energy 6. The video below shows how a coal fired power station works. Electricity can flow either as direct or alternating current, and is used in homes to power electrical appliances. The national grid power supply, environmental issues, use of transformers gcse physics revision notes.
Power is a word people muddle up with energy and with good reason. The power ratings of appliances are measured in watts w or kilowatts kw. Gorillaphysics, gcse physics revison, a level physics revision, exam practice, experiments. A fantastic set of resources for any power station lesson. Physics energy energy resources and power stations. Ks4gcse physics teaching resources teachit science. Nuclear power stations are like fossil fuel power stations, but instead of burning fuel they use nuclear fisson, to transfer energy as heat. The heating is done by burning fuels, or using other heat sources. Doc browns edexcel gcse sciencephysics revision notes study notes edexcel gcse science gcse physics unit p1 universal physics. Ppt aqa gcse 1a4 generating electricity powerpoint. Fossil fuels, nuclear power, geothermal energy and biomass are all used to boil water to make steam which turns a turbine. For this reason, we use standard circuit diagram symbols so that everyone will know what is meant when someone draws a. The uranium fuel rods are inserted into a large mass of moderator and are arrange in the reactor core to form the fuel assembly. Further topics at the end can be selected to provide the right mix of pages for the syllabus.
It can be easy, particularly if you get the main terms right. Electricity is a very useful form of energy because it can be used to do so many different things and electrical energy is easily transmitted over long distances. Electricity topic student checklist r a g e draw and interpret circuit diagrams, including all common circuit symbols define electric current as the rate of flow of electrical charge around a closed circuit calculate charge and current by recalling and applying the formula. Our households are full of domestic appliances, such as washing machines and vacuum cleaners, but do you understand how they receive power. Calculate the units used and the cost from the electricity bill below. Stephen pople, one of todays most respected science authors, has created a totally new physics book to prepare students for examinations. Now, whilst it might resemble some types of battery it does not resemble all types of battery and not everyone will recognise it is a battery. Renewable sources of energy, just like it sounds, are resources that theoretically can be used for ever if used at a rate which is consistent with the rate in which it is replenished. Different components have different resistance patterns which can be found from comparing the voltage and current across the component. A nuclear power station the animation below shows how electricity is generated in a nuclear power station. This is an energy transfer diagram for the generation of electricity from a fossil fuel such as coal. Power stations fuelled by fossil fuels or nuclear fuels are reliable sources of energy, meaning they can provide power whenever it is needed.
General physics on a windy day this wind turbine generates 2000 kw of electricity. Outstanding power station resources for all types of students. This is where teaching and learning resources can be downloaded and added. Gcse revision notes physics revision notes electricity 1. We use different energy resources to turn the turbines. Gcse gorillaphysics gcse and a level physics revision. Current, voltage and resistances the main problem with electricity is that everyone uses it all the time, so they think they know how it works already. Once supplies of these fuels have been used up they cannot be replaced. Most core science gcse syllabi have a section on understanding our choices we have when selecting power stations. The current in each branch will add up to the total current through the battery. Gcse power stations outstanding resources teaching resources. The more components connected in parallel, the more energy is used. Pearson edexcel level 1level 2 gcse 9 1 in physics 1ph0.
The national grid distributes electricity throughout the country. Aqa gcse physics student book sample chapter by collins issuu. The two terms are related, but they are not the same thing. Powerpoint and complementary workbook to cover mains electricity, acdc, oscilloscopes, plugs, fuses and electric safety. Electricity is sent through the national grid cables at 400,000v, 275,000v and 2,000v.
A free powerpoint ppt presentation displayed as a flash slide show on id. Teaching energy the new approach teaching energy the new way with stores emptying and filling via pathways has caused lots of confusion. To turn the generators we connect them to turbines. You are going to come across a huge number of new concepts and ideas that you are going to have to be fluent at explaining and applying to new contexts.
These will include types of power stations but also smaller scale options like solar cells, or diesel generators. Electricity generation gcse gorillaphysics gcse and a level. Heres a quick video i made when i was out and about on my bike in the loire. Power stations generate significant heat losses to the environment. About threequarters of the electricity generated in the uk comes from power stations. Generating electricity scool, the revision website. Power stations and the national grid exam question. Power has many uses in everyday language, but in physics, power specifically means the rate at which work is done. A secondary education revision video to help you pass your science gcse. Nuclear power stations and coal fired power stations usually produce the minimum level of electricity required by the.
Current this is a measure of the flow of electrons around a circuit measured in amperes or amps a voltage this is a measure of how much energy the electrons are carrying. You find some way of heating water, to make steam to turn a turbine, which turns a generator. Coal mainly carbon, crude oil certain hydrocarbon fractions, natural gas mainly methane and nuclear. Work, energy, power mit opencourseware free online. Complete physics covers all syllabuses due to a unique combination of core pages and further topics. Transfer of energy the student in the picture below is having a lot of fun. Electricity generation gcse gorillaphysics gcse and a. Amongst other things, year 10 and year 11 students should be able to calculate the current, charge and power in electrical circuits and know how these affect efficiency.
Gcse physics shorts physics topics in under a minute. Gravitational potential energy this is the energy an object gains when it is lifted up in a gravitational field, it is measured in joules j. Creating currents you can see that any current in a magnetic field will produce a force, which may make something move. For example, if each of the circuits on this page used the same type of cell and same type of lampthe circuit below would light one lamp for 12 hoursthe circuit below would light two lamps for 6 hoursand the circuit below would light three lamps for 4 hours. Most power stations work in the same way, we call them thermal power stations. This contains cooperative learning, kagan, card sorts, active learning and independent learning. In the diagram above we show the battery as a rectangle with two connections at either end. It was written especially to help year 10 and year 11 pupils revise. Nuclear power generating electricity wjec gcse physics.
Let mr thornton simplify how generating electricity in a thermal power station works its easy when you know how. Work and power work is done when a force causes an object to move in the direction of the force. Physics gcse revision section of revision science looking at how power is generated and added to the national grid. This quiz includes the topics on work, energy and power.
Power stations turning a generator produces electricity. Power is defined as the rate of transfer of energy. Units used current reading previous reading 8459 7711 748 cost units used x unit price 748 x 9. Gcse physics energy questions and answers exam papers plus. Our resources provide you with creative teaching ideas and activities for your science class. The quiz is consisting of 15 multiplechoice items, which are all conceptual. The site is particularly useful for those in the uk studying gcse physics and a level physics. I hope you didnt forget becsue for some reason i have to right a description for the people who dont know what a crossword is, i wish you luck in the future. Learn how we generate electricity and the environmental impact of electricity generation. A power station converts a primary energy source into electricity.
One topic looked at in gcse physics is electricity. These are historically, and to the present day, the major energy sources for large power stations. Ask students to use the resource on bbc bitesize to calculate primary and secondary voltages resulting from the number of coils on the transformer ar10. When the fossil fuel is natural gas, some power stations dont boil water to make steam but directly use the hot burnt gases to turn the turbine. A student suggests replacing a coal power station with solar panels on the same site. That is the general idea of a crossword incase you forgot. More on series and parallel circuits, circuit diagrams, measurements and calculations gcse physics revision. Resources compared fossil fuels and nuclear power gcse. Tutorials, tips and advice on gcse physics coursework and exams for students, parents and teachers.
If you would like to download a resource then click on the relevant attachment at the bottom of the page. A physics revision video about the different ways of generating electricity. Energy resources most of the energy we use is obtained from fossil fuels coal, oil and natural gas. The steam produced drives a turbinethat is coupled to an electrical generator. This is the website for both students and teachers of physics whether studied as a single subject or as part of a combined science course. The opposite affect is that if a wire is moved in a magnetic field, a voltage is produced, and if there is a complete loop, a current will flow. What is the formula relating voltage, resitance and current. He has taught alevel physics in a number of secondary schools, maintained and independent, and has extensive experience of leading very successful physics and science departments. Generating electricity thermal power station physics. To figure out how much force goes into doing useful work in a given situation, you multiply the force times the cosine of the angle the force makes with the direction of motion in truth, there is a little more to this story, depending on the type of.
Draw the voltagecurrent graphs for a resistor, filament lamp. Energy sources for power stationsenergy sources used to generate electricity in power stations. If you are going to memorise one sentence for your exams thats a good one, as it usually carries three marks in an explanation of a power station. When you have completed this course, you will be able to. Nuclear power stations gcse physics revision youtube. To make lifting water from a well much easier, a long handle 50 cm is attached to the axle around which the rope is wound, as shown below. Revise and have fun by playing this great interactive quiz. Energy gcse gorillaphysics gcse and a level physics revision. This is a resource designed to meet specification points for the new aqa gcse physics module on energy. The rise in the earth average temperature dramatically over the last 100 years. Gcse electricity revise household and domestic power. Aqa gcse 91 physics student book helps to develop the skills. If youre a subscriber, you can adapt them to make them perfect for your students and your teaching objectives have a look at some of our handpicked resources for ks4 through to ks4 physics. Gcse physics is going to be one of the most demanding subjects for you.
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