ISCI 101 Lecture Notes - Lecture 4: Water Heating, Seismic Wave, Thermodynamics
5 Feb 2016
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Total cost = wattage x hours used / 1000 x price per kwh. Water waves: movement, ek released when waves hit the shore. Sound waves: air molecules move have ek, seismic waves: sound waves traveling through solid earth, released as earthquakes. Mass can be converted to energy (albert einstein) C: speed of light (3x 108 m/s) A small amount of mass will give you a large amount of energy in nuclear reactions. Accelerating a car: the gas has potential energy stored in it in the form of chemical bonds. ~10% of this heat energy is converted to the car"s energy of motion: the rest remains in the form of heat, which is carried away by exhaust. The branch of science dealing with the laws and theories related to energy in the universe the study of energy . Thermodynamics is concerned with inter-conversions of different forms of energy.
