Midterm | ENST 415 - RENEWABLE ENERGY, Quizzes of Energy and Environment

Download Midterm | ENST 415 - RENEWABLE ENERGY and more Quizzes Energy and Environment in PDF only on Docsity! TERM 1 energy DEFINITION 1 Capacity to do work TERM 2 Work DEFINITION 2 useful energy transformation; =F x D TERM 3 Power DEFINITION 3 Rate of doing work TERM 4 Entropy DEFINITION 4 Lost energy; degree of disorder TERM 5 Force DEFINITION 5 Intensity of moving an object; = M x A TERM 6 Efficiency DEFINITION 6 Ratio of useful output to required input TERM 7 Laws of Thermodynamics DEFINITION 7 1. Energy cannot be created or destroyed2. In all real processes, some energy loses ability to do work 3. Entropy at absolute zero is zero TERM 8 1st law rewritten DEFINITION 8 energy in = energy out TERM 9 2nd law rewritten DEFINITION 9 energy always decreases during transformations TERM 10 Weight is equivalent to DEFINITION 10 Force TERM 21 Nuclear Energy DEFINITION 21 Energy stored in the nucleus of an atomWhen nucleus splits (fission) releases heat and light energyMost concentrated form of energy TERM 22 Mechanical Energy DEFINITION 22 Energy done by work on an object (kinetic)Energy stored in tension (potential) TERM 23 Types of Kinetic Energy DEFINITION 23 Radiant - electromagnetic energy that travels in waves (sunlight)Thermal - heat or vibration of atomsMotion - energy stored in movement of objectsSound - movement in longitudinal waves TERM 24 Kinetic Energy = DEFINITION 24 1/2 m*v^2 TERM 25 Types of Potential Energy DEFINITION 25 Chemical - stored in bondsMechanical - stored in objects by tensionNuclear - stored in nucleus of an atomGravitational - stored by an objects heightElectrical - stored in charged particles TERM 26 Gravitational Potential Energy = DEFINITION 26 mgh TERM 27 Power from K.E. DEFINITION 27 = 1/2 p A v^3p = air densityA = areav = velocity(for wind turbine) TERM 28 Power from P.E. DEFINITION 28 P = Q H gP = theoretical output in kWQ = usable flow rate in m^3/sH = gross head in metersg = gravity TERM 29 Voltage DEFINITION 29 measure of energy required to maintain current TERM 30 Power = DEFINITION 30 voltage (v) x current (i) TERM 31 Resistance = DEFINITION 31 voltage/currentv / i