Energy resources and transfer 3.0 / 5 based on 1 rating ? PhysicsEnergyIGCSEEdexcel Created by: EllieCreated on: 18-04-13 19:28 State the 9 types of energy Electrical, light,sound,kinetic,nuclear, thermal, gravitational potential, elastic potential and chemical 1 of 17 Why do we conserve energy? to prevent damage to the environment and to stop us running out of resources 2 of 17 What does energy efficiency equal? useful energy output over total energy input 3 of 17 What is wasted energy always dissipated as? heat 4 of 17 What does the thickness of an arrow representing a sankey diagram? the amount of energy 5 of 17 How can heat be transferred? Radiation, conduction and convection 6 of 17 What is conduction the heat transfer in? solids 7 of 17 What is convection the heat transfer in? liquids and gases 8 of 17 Heat radiation can also be called... infrared radiation 9 of 17 State three ways you can insulate a home wall cavities, thick curtains, double glazing, draft proofing, loft insulation 10 of 17 What does work done equal? force times distance moved 11 of 17 What does gravitational potential energy equal? mass times gravity (10) times height 12 of 17 What does kinetic energy equal? half times mass times speed squared 13 of 17 State the equation linking work done power and time Power = work done over time taken 14 of 17 What are the nonrenewable energy resources? Coal, oil, natural gas, nuclear fuels 15 of 17 How does a nuclear reactor work? Nuclear fission of Uranium produces heat to make steam which drives the turbines. 16 of 17 What are the renewable energy sources? Wind farms, geothermal energy, solar and wave energy, 17 of 17
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