Energy 0.0 / 5 ? PhysicsEquations and FormulaeEnergyGCSEAQA Created by: nadeen2000Created on: 19-03-17 12:23 Kinetic energy equation Ek=0.5 x mass x (velocity)² 1 of 20 Elastic Energy Equation 0.5 x spring constant x (extension)² 2 of 20 Gravitational Potential Energy equation GPE= mass x gravitational field strength x height 3 of 20 Specific Heat Capacity the amount of energy needed to raise the temperature of one kilogram of a substance by one degree Celsius 4 of 20 Specific Heat Capacity Equation E = m × c × θ 5 of 20 Work Done equation Work Done(or energy transferred)=force x displacement 6 of 20 Power Rate at which energy is transferred or the rate at which work is done 7 of 20 Power Equation Power=energy/time 8 of 20 1 joule per second an energy transferred of 1 joule per second is equal to a power of 1 watt 9 of 20 Ways to reduce unwanted energy loss Lubrication or insulation 10 of 20 Efficiency equation Efficiency=Useful output energy transfer/Total input energy transfer 11 of 20 Efficiency Equation 2 Efficiency=useful power output/ total power input 12 of 20 The main energy resources available on Earth Fossil fuels (coal,oil,gas), nuclear fuel,bio-fuel,wind,hydroelectricity ,geothermal,tidal,solar and wave 13 of 20 Renewable energy resource Energy that is replenished as it is used 14 of 20 non-renewable energy resource Energy that Will eventually run out 15 of 20 Uses for energy resources Transport,electricity, generation and heating 16 of 20 Different resources used for different things biofuels and oil for transport;solar,oil,and gas for heating and all can be used for generation of electricity 17 of 20 Changes in the way energy is stored in a system when a system changes Moving an object upwards, and object hitting an obstacle, an object accelerating by a constant force, a vehicle slowing down 18 of 20 Stored energy Chemical,Nuclear,GPE, and elastic 19 of 20 Types of energy chemical,nuclear,GPE,elastic,kinetic,sound,thermal/heat,electric,light 20 of 20
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