Energy required mass x specific latent heat of vaporisation. It has units degrees celsius c or degrees kelvin k. Start studying specfic heat capacity, latent heat and rp physics gcse paper 1. If your school is closed due to coronavirus then you will still be able to continue with a gcse physics lesson on monday, tuesday and wednesday. Start studying a2 aqa physics thermal physics specific heat capacities etc. Miss wises physics site specific latent heat practice questions. Specific latent heat gcse physics combined edexcel. This document contains the required practical activities for the gcse physics qualification.
Notes on specific latent heat to support this video are here. When a substance is melting, it will take in this energy. Teachers can set question sheets for homework and then obtain detailed results for each student. We then look at how to carry out calculations based on specific latent heat. The heating of a substance transfers energy to the substance, which stores that energy. Substitute the knowns along with their units into the appropriate equation and. It needs a lot of energy to heat the water in a radiator or hot water bottle. The latent heat of fusion is the energy required for the state change. Founded in 2002 by nobel laureate carl wieman, the phet interactive simulations project at the university of colorado boulder creates free interactive math and science simulations.
Learn about and revise the relationship between temperature and energy and also about changes of state with gcse bitesize physics. Scroll down the page for more examples and solutions on how to use the formula. Latent heat aqa gcse physics revision notes save my exams. For even more products visit our full physics shop. First we look at what is meant by specific latent heat of fusion and specific latent heat of vaporisation.
Aqa gcse physics p6 matter and molecule kerboodle answers. Gcse science physics 91 specific heat capacity duration. Numerous and frequentlyupdated resource results are available from this search. Specific latent heat energy, temperature and change of. Heating energy transfer between two objects because one is. Heat is an important form of energy to understand, and that is why we have chosen to start this book with it, but on the microscopic level, or you might say the nanoscopic, level heat is actually just the random kinetic energy of the particles which make up a substance.
Determine a value for the specific latent heat of ice objective to determine the specific latent heat of ice by measuring the drop in temperature of water containing melting ice safety you are assessed against cpac 3b and should produce an appropriate risk assessment. The energy released comes from the potential energy stored in the bonds between the particles. Gcse science physics 91 specific latent heat youtube. Heat absorbed or released as the result of a phase change is called latent heat. The specific latent heat of a substance, is the amount of energy per kilogram required to change the state of said substance.
Since it is a change of state between gas and liquid you will need to use the latent heat of vaporisation. This extra energy of steam makes it more dangerous than the boiling water. Aqa physics exam style questions p6 molecules and matter. This pdf textbook covers all the core and supplement material and can be used by students following both the core and extended syllabuses.
Specific latent heat is defined as the amount of heat required to change 1 kg of a substance from one physical state to another without any change in. Gcse 91 physics b twenty first century science j25904 depth in physics higher tier. Gcseigcse physics solutions, examples, worksheets, videos. A series of free gcse igcse physics notes and lessons. Reliable information about the coronavirus covid19 is available from the world health organization current situation, international travel.
So the specific latent heat of fusion lf is the thermal energy needed to cause 1kg of a substance to melt or freeze. Is defined as the amount of heat needed to change a unit mass of a solid to liquid without a temperature change. The kerboodle textbook detailed answers and all the past paper questions on p2 energy transfer by heating chapter according to the mark. Specific latent heat examples, solutions, videos, notes. Complete physics for cambridge igcse by stephen pople, published by oup. There is no temperature change during a phase change, thus there is no change in the kinetic energy of the particles in the material. Cambridge igcse physics 3rd edition free download pdf this new edition has been written by experienced authors and teachers to support the latest syllabus for cambridge international examinations igcse physics 0625. Selection file type icon file name description size.
If you like to support or contribute please email me. In this gcse physics video we look at specific latent heat. These will be perfect for students across the uk and international schools where igcses are taken, especially those in year 9 and 10. Students are then introduced to the idea of specific latent heat of fusion firstly students are given a description of what this tells us about a substance and then also the calculation. Cross through any work you do not want to be marked. Latent heat of fusion and vaporization specific latent heat of fusion. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Aqa gcse physics p2 energy transfer by heating bioenergetics.
Phet sims are based on extensive education research and engage students through an intuitive, gamelike environment where students learn through exploration and discovery. So the transfer of heat occurs during the phase change. If there is a temperature change, the transferred heat depends on the specific heat see table 14. The latent heat of vaporisation is the energy required for the state change. Specific heat capacity aqa gcse physics required practical duration. Molecules and matter physics gcse revision buddy science homework help. Specific heat capacity 4 200 jkg c use the physics equations sheet. By undertaking the required prac tical activities, students will have the opportunity to experience all of the required apparatus and techniques needed for the qualifications. Paper 1 physics june 2018 1249k specific latent heat of fusion of copper. Written by the expert teachers at save my exams for the aqa 91 gcse physics exam. If a heater of known power is used, such as a 60 w immersion heater that provides 60 js, the temperature of a known mass of. Specific latent heat matter physics fuseschool youtube.
Using a temperature vs time graph for heated ice to explain latent heat. Specific latent heat gcse physics combined science aqa. Gcse physics specific latent heat textbook question the. New aqa gcse 2016 physics specific latent heat teaching.
Gcse physics required practical activities practicals. Selection file type icon file name description size revision time user. Calculate the mass of water you could evaporate from its boiling point with the energy required. Phase change and latent heat college physics openstax. This important and informative poster offers a comprehensive outline of temperature changes, specific heat capacity, and specific latent heat. Students can take notes on this in their books, the next task then requires students to rearrange the equation they have been given to work out either energy j or mass kg. Covering the main exam boards, revision is made easy for students with a free onthego app, practice questions and stepbystep support. To appreciate the difference between the specific latent heat of fusion and the specific latent heat of vaporisation.
Specific heat capacity, specific latent heat, refrigeration, boiling and melting. Dedicated to help students excel in physics by giving notes, motivation and resources especially for olevel, high school, secondary school students. Specific latent heat temperature changes and energy. Specific latent heat aqa gcse physics single science revision. Isaac physics a project designed to offer support and activities in physics problem solving to teachers and students from gcse y11, through to university. Gcse physics sixth form subjects cambridge tutors college. The water becomes cold since it loses overall kinetic energy to the ice, the same way the fastmoving ball loses momentum to the slower one. The heat gained by the ice will be equal to the heat lost by the coffee. Videos, quizzes and downloads on density, changes of state, internal energy. Specific heat capacity aqa gcse physics required practical.
Students can enter their answers to questions for isaac physics, chemistry or mathematics to mark. Specfic heat capacity, latent heat and rp physics gcse. To help you get even better grades ive written a lot of ebooks, packed. We also know that it changes temperature, giving us a change in temperature of final initial. This can be explained by the concept of latent heat. The ice cube has a mass, and it has a specific latent heat capacity.
The following diagram shows the formula for specific latent heat. To be able to understand that the specific latent heat of a substance is the amount of energy required to change the state of one kilogram of the substance with no change in temperature. Physics required practical book i want to help you. Calculate the mass of ice lost from an iceberg melting, if the energy supplied was 835 000 000j. Specific latent heat and specific heat capacity go together really well for five mark questions since they both have energy, mass and are related to each other as they are in the same topic here is an example. Specific latent heat of fusion is the energy required to change 1kg of a substance from a solid to a liquid without changing its temperature. Latent heat can be measured from a heating or cooling curve line graph. Formulas for gcse igcse physics physics formulas energy kinetic energy elastic potential energy gravitational potential energy specific heat capacity specific heat capacity experiment energy transfers examples work done by a force power and work done energy efficiency energy from fossil fuels renewable energy atomic structure and radioactivity. Lastly, the specfic latent heat of vapourization lv is the thermal energy required for 1kg of the substance to boil or condense. Q coffee this mixing problem is more complicated than the ones in the previous section, however. Specific latent heat describe what is meant by specific latent heat of fusion and specific latent heat. A2 aqa physics thermal physics specific heat capacities. Science chart science facts science posters science words latent heat gcse science revision physics 101 gcse physics mathematics our internal energy poster is part of our science series. Latent heat of fusion is the energy needed by solid molecules to overcome the force of attraction between them and become a liquid.
Higher tier grades 9 to 4 foundation tier grades 5 to 1. What causes ice to melt without raising its temperature. The book says the specific latent heat of vaporisation of water should be. P6 aqa physics exam style questions p6 molecules and matter. Gcse 91 extra papers, questions and answers physics brand new gcse revision guides and exam practice books are written by experts and fully matched to the new gcse 9 1 specifications. Part of the macmillan work out series book series mcwo. Energy gained by the ice cube and melted ice means the direction of flow of energy is from somewhere in this case is water to the ice cube and melted ice. Specific latent heat is defined as the amount of heat required to change 1 kg of a substance from one physical state to another without any change in temperature. Thermodynamics gcse gorillaphysics gcse and a level.
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