Energy 0.0 / 5 ? PhysicsEnergyGCSEAQA Created by: aejacksonCreated on: 01-03-20 15:51 What is an energy store? Where energy is stored when transferred. 1 of 33 The first four energy stores are... Thermal, kinetic, gravitational potential, elastic potential. 2 of 33 The second four energy stores are... Chemical, magnetic, electrostatic, nuclear. 3 of 33 What are the ways energy is transferred? Mechanically, electrically, by heating, by radiation. 4 of 33 A force doing work is transferred... Mechanically. 5 of 33 Work done by moving charges is transferred... Electrically. 6 of 33 Light and sound is trasferred... By radiation. 7 of 33 What is a system? An object or a group of objects. 8 of 33 What happens when a system changes? Energy is transferred. 9 of 33 What is work done? Another way of saying energy transferred. 10 of 33 Energy can be transferred... By heating, a system changing or doing work. 11 of 33 Kinetic eenergy is... Movement. 12 of 33 What is the word equation for kinetic energy? 0.5 * mass * speed^2 13 of 33 What is the symbol equation for kinetic energy? Ek = 0.5mv^2 14 of 33 Gravitational potential energy is... Lifted or falling objects. 15 of 33 What is the word equation for gravitational potential energy? mass * height * gravitatinal field strength 16 of 33 What is gravitational field strength? 9.8 17 of 33 What is the symbol equation for gravitational potential energy? Ep = mgh 18 of 33 Elastic potential energy is... Stretching or squashing objetcs. 19 of 33 What is the word equation for elastic potential energy? 0.5 * spring constant * extension^2 20 of 33 What is the symbol equation for elastic potential energy? Ee = 0.5ke^2 21 of 33 Energy is measured in... Joules (J) 22 of 33 In the energy topic, mass is measured in... Kilograms (Kg) 23 of 33 Speed is measured in... Metres per second (m/s) 24 of 33 Height is measured in... Metres (m) 25 of 33 Gravitational field strength is measured in... Newtons per kilograms (N/Kg) 26 of 33 Spring constant is measured in... Newtons per metres (N/m) 27 of 33 Extension is measured in... Metres (m) 28 of 33 What is specific heat capacity? How much energy needed to raise the temperature of 1Kg of a substance by 1 degree celcius. 29 of 33 What is the equation linking with specific heat capacity? Change in thermal energy = mass * specific heat capacity * temperature change 30 of 33 Specific heat capacity is measured in... Joules per kilograms degrees celcius (J/KgC) 31 of 33 What does the specific heat capacity practical involve? Find the mass and temperature of different metals before and after power is switched on. 32 of 33 What is the conservation of energy principle? No energy can be created or destroyed. 33 of 33
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