P1 0.0 / 5 ? FunPhysicsFunNone Created by: sotes003.302Created on: 04-03-19 20:03 Energy Stores - Chemical , Kinetic , GPE , EPE , Thermal 1 of 17 Closed System - Energy constantly transfers in a loop forever with the same outcome 2 of 17 Conservation of Energy - Energy cannot be created nor destroyed 3 of 17 In what form are energy transfer Diagrams displayed in - Energy transfer diagrams are often displayed as flowcharts 4 of 17 Work done (W) = (Force Applied (F) or Weight) * Distance (s) 5 of 17 Factors limiting Work Done - Friction and wasted thermal energy 6 of 17 GPE = Mass * Height * Gravitational field strength 7 of 17 Kinetic Energy (Ek) = 1/2 * Mass (m) * Velocity² (v²) 8 of 17 Elastic Potential Energy (Ee) = 1/2 * Spring Constant (k) * Extension² (e²) 9 of 17 Useful Energy - Energy that is transferred to where it is needed in the form needed 10 of 17 Wasted Energy - Energy that is not usefully transferred 11 of 17 Friction Causing Wasted Energy - Friction is the main cause of wasted energy as it produces large amounts of useless thermal energy 12 of 17 Efficiency = Useful Output / Total Output 13 of 17 Ways Energy is Wasted - Friction between moving parts ; Resistance in a wire ; Air resistance opposing motion ; Sound made by moving parts 14 of 17 Limiting Energy Wasted - Lubricate moving parts ; Wires with less resistance ; Streamlined shapes ; Cut out noise 15 of 17 The more Powerful an appliance... ...The faster the rate at which it transfers energy 16 of 17 Power (P) = Energy Transferred (E) / Time (t) 17 of 17
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