Physics 1 3.0 / 5 based on 1 rating ? Revision SkillsOtherNone Created by: katieCreated on: 03-12-12 17:37 What is SHC? SHC means Specific Heat Capacity. It is the capacity of a material that is needed to raise the temperature by 1C. 1 of 9 What is SLH? SLH means Specific Latent Heat. SLH is the amount of energy needed to do something to a 1kg of a material/substance without changing the temperature. 2 of 9 What is the SHC equation? Energy Supplied = Mass Of Object x Specific Heat Capacity x Temperature Change. In symbols it is: E=MxCxT. 3 of 9 What is the SLH equation? Energy = Mass x Specific Latent Heat. In symbols it is: E x M x SLH. 4 of 9 What is payback time? Payback time is how long it takes for the cost of installing insulation to be equaled by the saving from reduced energy costs. 5 of 9 What is the payback time equation? Payback time (years) = Cost To Install / Savings Each Year. 6 of 9 What does it mean when someone says "How efficient is it?"? It means how good is it or how much does it work. Nothing is ever 100% efficent, which means some energy is always lost. 7 of 9 What is the equation for efficency? Efficiency = Useful Energy Out / Total Energy In x 100/ 8 of 9 What does the straight arrow on a sankey diagram mean? The useful energy out. The bent arrow is the wasted energy out. 9 of 9

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