What does absorb mean? What does emit mean? What surfaces are good absorbers and emitters? What surfaces are poor absorbers and emitters? Why? What is heat radiation? What factors affect: Evaporation? Condensation? How does conduction occur in solids? (Draw a diagram to help ) How does conduction occur in metals? (Draw a diagram to help) Insulation Method How does it reduce heat loss? Loft insulation Double glazing Hot water tank jacket Cavity wall insulation Draught Proofing What happens if there is a large temperature difference between an object and its surroundings? What 3 ways can heat radiation be transferred? StateForceParticles/ Movement Diagram Solid Liquid Gas What is kinetic theory? How does convection occur in fluids ? (Draw a diagram to help) What factors affect the rate of energy transfer? What is specific heat capacity? What is the formula triangle for the calculation? Calculate: A 0.5kg object has a specific heat capacity of 1000J/kg °C. How much energy is needed to increase temp from 20°C to 200°C? Label the diagram to show how heat transfer is prevented? What’s a U Value?

QWC: 6 Mark questions In these questions you will be assessed on using good English, organising information clearly and using specialist terms where appropriate. Q1: Describe how different animals cope with low temperatures Q2: Evaluate the design of a radiator Q3 Compare different types of home insulation and describe what factors may need to be considered when choosing for a home

What are the two forms of stored energy? What is the law of conservation of energy? What are the nine types of energy? Give examples: Sankey Diagrams 1: Label: Total energy in, useful, wasted heat, kinetic, wasted sound. What is another word for spread out or dissipated? What are the energy transfers in the following devices? Kettle Bungy cord Car A bow and arrow A fan heater Why is energy input of a device never equal to the output? What device is the exception? How is energy usually lost in heat transfers? What are the 2 formulas for calculating efficiency? What is the formula triangle for the calculation? Why must you think about both cost effectiveness and efficiency when choosing appliances? What happens to energy that is not usefully transferred? How can waste energy be used? Sankey diagrams 2: Label: How much is each square worth? How much energy is lost? How much is useful? Type of energyExample

How do you calculate amount of energy transferred? What is the unit of energy? Give the energy transfers following appliances: What does a unit of energy mean? How do you monitor electrical energy use in the home? How much energy has been used? How do you calculate cost of electricity? Using a battery powered radio: Advantages Disadvantages Using a clockwork radio: Advantages Disadvantages Applian ce UsefulWasted TV Radio Lamp Fan heater Pencil Sharpen er Vacuum Cleaner Laminat or Drill Mobile Phone How does electricity improve our standard of living?

Small scale production of electricity: Why is this useful? The National Grid: Why are transformers used in the national grid? Start up times? What effect does generating electricity have on the environment? How can the effect be reduced? What is pumped storage? MethodFuelsRenewable/ Non- renewable How is electricity generated? AdvantagesDisadvantages Fossil fuels Nuclear Biofuels Wind Wave power Hydroelectric Solar Geothermal Why are small scale productions not connected to the grid? Type of cable AdvantagesDisadvantages Undergr- ound Overhead How do start up times affect when a power station is used?

QWC: 6 Mark questions In these questions you will be assessed on using good English, organising information clearly and using specialist terms where appropriate. Q1: Evaluate different methods of generating electricity Q2: Evaluate ways that electricity supply can be matched with demand both increasing and decreasing supply Q3 Compare the advantages and disadvantages of overhead power lines and underground cables