Required Practical Guide Specific Heat Capacity The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club 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The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club The PiXL Club Required Practical Guide Physics Specific Heat Capacity This document contains: Links to YouTube clips showing the practical procedure Information from examination boards AQA, OCR, Edexcel Potential examination questions and answers This resource is strictly for the use of member schools for as long as they remain members of The PiXL Club. It may not be copied, sold nor transferred to a third party or used by the school after membership ceases. Until such time it may be freely used within the member school. All opinions and contributions are those of the authors. The contents of this resource are not connected with nor endorsed by any other company, organisation or institution. Commissioned by The PiXL Club Ltd. November 2016 www.pixl.org.uk The PiXL Club Ltd, Company number 07321607 © Copyright The PiXL Club Ltd, 2016

Required practical – exam boards AQA Edexcel OCR

Practical procedure: Specific Heat Capacity Click on each of the tabs to take you to a YouTube clip. Please note these are external sites to PiXL, PiXL does not control the content of these sites. Video 1 Video 2 Image from: http://www.schoolphysics.co.uk/age16-19/Thermal%20physics/Heat%20energy/text/Specific_heat_capacity_measurement/index.html

Possible examination style questions Explain how you could determine the specific heat capacity of a metal block. Explain why data obtained in a practical may not agree with the theoretical value for specific heat capacity. How could you improve the practical to ensure the practical result is as close to the theoretical value as possible. Describe how to find the specific heat capacity of water.

Possible examination style questions answers Explain how you could carry out an experiment to determine the specific heat capacity of a metal block. ANSWER: Measure mass of block Place small amount of water in hole in block and insert thermometer Insert immersion heater Ammeter and voltmeter Measure temperature before and after heating Measure time taken

Possible examination style questions answers Explain why data obtained in a practical may not agree with the theoretical value for specific heat capacity. ANSWER: Heat is lost to the surroundings Part of the emersion heater is outside the block Thermometer is measuring the temperature of water and not the block Poor contact between the heater and the block – air has to be heated first

Possible examination style questions answers How could you improve the practical to ensure the practical result is as close to the theoretical value as possible. ANSWER: Wrap block in insulation Ensure all the heater is in the block and in contact with the block Wait until the maximum temperature of the water is reached

Possible examination style questions answers Describe how to find the specific heat capacity of water. ANSWER: Measure mass of water Place in insulated beaker Ammeter and voltmeter or a joulemeter Heat the water using an immersion heater Monitor the change in temperature and the time taken E = I x V x t ΔE = m x c x ΔT

Key questions: What two things might happen to water if you heat it? How would you measure the temperature of ice? What happens to the temperature of ice when it is melting? What quantities will you need to measure before you can calculate specific heat capacity? If you heat water in a beaker, some of the thermal energy supplied is lost to the surroundings. How can you reduce this energy loss? What does the term specific heat capacity mean? What are the units for specific heat capacity? http://qualifications.pearson.com/content/dam/pdf/GCSE/Science/2016/teaching-and-learning-materials/GCSE-9-1-Sciences-core-practical-guide.pdf

Summary document A summary document is also available on Huddle which contains all the relevant information about this practical from the different examination boards. It includes practical methods and other potential examination questions