Energy 5.0 / 5 based on 1 rating ? PhysicsEquations and FormulaeGCSEAQA Created by: 16jordaCreated on: 04-11-18 15:33 What is Energy? Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed. 1 of 25 What are the 7 key types of Energy? Kinetic, Electrical, Sound, Light, Gravitational, Elastic, Chemical, Nuclear, and Thermal (Heat) energy. 2 of 25 What is Energy measured in? Energy is measured in Joules (J). 3 of 25 How many KilloJoules in a Joule? 1 KilloJoule (KJ) = 1,000 Joules (J). 4 of 25 How many MegaJoules in a Joule? 1 MegaJoule (MJ) = 1,000,000 Joules (J). 5 of 25 What can Energy not do? Energy cannot be created or destroyed. 6 of 25 What can Energy do? Energy can be transformed from one form to another form. 7 of 25 What is the Conversation of Energy? Converrsation of Energy means that the total energy in the universe stays constant. 8 of 25 What is Kinetic Energy? Kinetic Energy is the energy possessed by a body because of it's speed and mass. 9 of 25 What is the formula for Kinetic Energy? Kinetic Energy = 1/2 x Mass x Speed or KE = 1/2 x M x V . 10 of 25 What is Mass measured in? Mass (M) is measured in Kilograms (Kg). 11 of 25 What is Speed measured in? Speed (Volocity) is measured in Meters per Second (M/S). 12 of 25 What is Gravitational Potential Energy? Gravitational Potential Energy (GPE) is the energy stored in an object when work is done in moving an object upwards. 13 of 25 What is the formula for Gravitational Potential Energy? Gravitational Potential Energy = Mass x G x Height or GPE = M x G x H. 14 of 25 What is an Elastic Limit? An elastic limit is the force against extension graph if the elastic limit is exceeded. 15 of 25 What is the formula for the area of Elastic Potential Energy stored? Area (A) = 1/2 x Base x Height or A = 1/2 x B x H. 16 of 25 What is the formula for the Elastic Potential Energy? Elastic Potential Energy = 1/2 x Kinetic Energy or EPE = 1/2 x KE . 17 of 25 What is Specific Heat Capacity? Specific Heat Capacity is the amouny of heat required to raise the temperature of one kilogram a substance by one degree celsius. 18 of 25 What is the formula for Specific Heat Capacity? Specific Heat Capacity = Energy Mass x Change in temperature. 19 of 25 What is the formula for Energy in Specific Heat Capacity? Energy = Mass x Specific Heat Capacity x Change in temperature. 20 of 25 What is the Specific Heat Capacity of water? The Specific Heat Capacity of water is 4.18 KJ or 418 J. 21 of 25 What is Specific Heat Capacity measured in? Specific Heat Capacity is measured in Joules (J). 22 of 25 What is the formula for Power? Power = Work done or energy time or Work done or Energy power x time. 23 of 25 What is the formula for Efficency (NOT as a percentage)? Efficency = Useful energy out Energy in. 24 of 25 What is the formula for Efficency (AS a percentage)? Efficency =Useful energy out Energy in x 100%. 25 of 25
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