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PS Chapter 15:Thermo
PS Chapter 15: Thermodynamics Coach Leach
Term | Definition |
---|---|
temperature | The measure of the hotness or coldness of a substance; proportional to the average kinetic energy of the particles within the substance. |
thermal energy | The sum of the kinetic energies of all the particles within an object. |
thermometric property | Any property that changes predictably with changes in temperature. |
heat | Movement of thermal energy from an area of higher temperature to one of lower temperature. |
conduction | Movement of electric charge or thermal energy through an object or from object to object through direct contact. |
convection | Movement of thermal energy as fluids move. |
radiation | Movement of energy in the form of electromagnetic waves. |
thermal conductor | A material through which thermal energy moves easily. |
thermal insulator | A material through which thermal energy does not easily move. |
specific heat | The energy required to raise the temperature of 1 gram of a substance 1 degree Celsius. |
thermodynamics | The study of thermal energy and heat and how they relate to work and other forms of energy. |
first law of thermodynamics | The law that states that energy cannot be created or destroyed but only transferred between objects or transformed; also known as the law of conservation of energy. |
second law of thermodynamics | The law that states that energy can flow from a colder object to a warmer object only if something does work. |
third law of thermodynamics | The law that states that entropy would be at its minimum value at absolute zero; therefore absolute zero can never be achieved. |