Investigation into the U-Values of Different Materials.
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Investigation into the U-Values of Different Materials Planning experimental procedures AIM: The aim of this investigation is to compare the U-values given off by conductors of different materials. The U-value for any specified heat conductor is the heat energy lost per second through the conductor per square metre when there is a temperature difference of 1°c between its surfaces. FAIR TEST: * I must have equal amounts of water in each container. - This ensures the same amount of water will be heated up. To do this I will need to measure each one accurately. * I must make sure each material covers the same surface of the metal container.- This ensures the 'temperature given off' is carried out fairly. * I must start measuring the temperature of each container at the same time. - This means the starting temperature will be the same so that each experiment begins fairly. * I must place the thermometer just outside...

