Revision cards 0.0 / 5 ? PhysicsEnergyGCSEAQA Created by: miashute1Created on: 02-05-18 11:23 What are the 7 main stores of energy? magnetic, internal (thermal), chemical, kinetic, electrostatic, elastic potential, gravitational potential 1 of 7 energy is transferred by one of the following four types of energy transfer: Mechanical work, Electrical Work,Heating, Radiation. 2 of 7 Calculating power power (P) is measured in watts (W) work done (W) is measured in joules (J) time (t) is measured in seconds (s) 3 of 7 Equation for calculating power power=workdone/time 4 of 7 Efficiency A very efficient device will waste very little of its input energy. A very inefficient device will waste most of its input energy. 5 of 7 Equation for Efficiency Efficiency= Useful energy out/total energy in 6 of 7 Equation for Efficiency for power Efficiency= Useful power out/ total energy in 7 of 7
Comments
No comments have yet been made