mechanical engineering-The branch of engineering concerned with energy conversion, mechanics, and mechanisms and devices for diverse applications inging from automotive parts through nanomachines mechanics-The branch of physics which seeks to formulate general rules for predicting the behavior of a physical system under the influence of any type of interaction with its environment systems engineering-The branch of engineering dealing with the design of a complex interconnection of many elements (a system) to maximize an agreed upon measure of system performance thermodynamics-The branch of physics which seeks to derive, from a few basic postulates, relations between properties of substances, especially those which are affected by changes in temperature, and a description of the conver sion of energy from one form to anothermechanical engineering—The branch of engineering concerned with energy conversion, mechanics, and mechanisms and devices for diverse applications, ranging from automotive parts through nanomachines. mechanics—The branch of physics which seeks to formulate general rules for predicting the behavior of a physical system under the influence of any type of interaction with its environment. systems engineering—The branch of engineering dealing with the design of a complex interconnection of many elements (a system) to maximize an agreedupon measure of system performance. thermodynamics—The branch of physics which seeks to derive, from a few basic postulates, relations between properties of substances, especially those which are affected by changes in temperature, and a description of the conversion of energy from one form to another. x