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- 4. Equilibrium Refers to the property of a thermodynamic system in which all parts of the system have attained a uniform temperature which is the same as that of the system’s surroundings.”
- 5. The unit of potential difference symbolized as V.”
- 6. of Best Fit A straight line that best represents all data points of a scatter plot. This line may pass through some, all, or none of the points displayed by the scatter plot. Also referred to as a Trend Line or Regression Line.
- 8. Law of Thermodynamics A law that if two systems are separately found to be in thermal equilibrium with a third system, the first two systems are in thermal equilibrium with each other; that is, all three systems are at the same temperature. Also known as thermodynamic equilibrium.”
- 9. The unit of electric current in the meter-kilogram-second system of units. Referred to as amp and symbolized as A.”
- 12. Energy Energy caused by the movement of light waves.”
- 14. A property of an object which determines the direction of heat flow when the object is placed in thermal contact with another object.”
- 15. Energy in transit due to a temperature difference between the source from which the energy is coming and a sink toward which the energy is going.”
- 17. The opposition that a device or material offers to the flow of direct current.”
- 18. Law of Thermodynamics A general statement of the idea that there is a preferred direction for any process.”
- 19. Process by which, in a fluid being heated, the warmer part of the mass will rise and the cooler portions will sink.”
- 22. Development Lifecycle Stages a product goes through from concept and use to eventual withdrawal from the market place.
- 24. Energy Any source of energy other than fossil fuels that is used for constructive purposes.”
- 25. System A part of the physical world as described by its thermodynamic properties such as temperature, volume, pressure, concentration, surface tension, and viscosity.”
- 26. The process separating the hydrogen-oxygen bond in water using an electrical current.”
- 29. The net transfer of electric charge (electron movement along a path) per unit of time.”
- 30. A unit of absolute temperature and symbolized as K. Formerly known as degree Kelvin.”
- 31. A measure of thermal transmittance through a material.”
- 32. Solar Energy Collection Systems that do not make use of any externally powered, moving parts, such as circulation pumps, to move heated water or air.
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- 1. The potential difference measured in volts. The amount of work to be done to move a charge from one point to another along an electric circuit.”
- 2. Energy A resource that can be replaced when needed.”
- 3. Law of Thermodynamics The law that heat is a form of energy, and the total amount of energy of all kinds in an isolated system is constant; it is an application of the principle of conservation of energy. Also known as conservation of energy.
- 7. The ability to do work.
- 9. Solar Energy Collection A type of system that uses circulating pumps and fans to collect and distribute heat.”
- 10. The function of the state of a thermodynamic system whose change in any differential reversible process is equal to the heat absorbed by the system from its surroundings divided by the absolute temperature of the system.
- 11. Law States that the direct current flowing in an electric circuit is directly proportional to the voltage applied to the circuit.
- 12. The flow of electrical power or charge.”
- 13. The study of the effects of work, heat, and energy on a system.”
- 16. Energy Energy caused by the movement of electrons.”
- 20. The measure of resistance to heat flow.”
- 21. The process by which energy is transmitted through a medium, including empty space, as electromagnetic waves. This energy travels at the speed of light. This is also referred to as electromagnetic radiation.
- 23. The unit of electric current in the meter-kilogram-second system of units. Symbolized as Ω.”
- 27. The transfer of heat within an object or between objects by molecular activity, without any net external motion.”
- 28. Cell Stack Individual fuel cells that are combined in series.”