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# Three Laws of Thermodynamics

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Last updated 2 years ago

Discipline:
Science
Subject:
Physics
9

Three Laws of Thermodynamics

Thermodynamics-the study of conversions between thermal energy and other forms of energy.Absolute Zero-or zero degrees kelvin is the tempurature where all motions stop.Entropy- is commonly understood as a measure of disorder.Temperature- is the measure of the average kinetic energy of the atoms in an object.

Heat-is the transfer of energy from one object to another because of a temperature difference.Calorie-A unit of heat and energy equal to the amount of energy requires to raise the temperature of one gram.Energy-is the ability to do work.Potential Energy- energy that is stored as a result of the position or shape.

Kinetic Energy-the energy of motionExothermic- formed from its constituent elements with a net release of heat.Endothermic-accompanied by or requiring the absorption of heat.Thermal Expansion-is an increase in the volume of a material due to a temperature increase.

Thermal Contraction-materials expand it contract when subjected to change in temperature.Radiation-the transfer of heat or energy by electromagnetic waves.Convection-is the transfer of energy through the motion of currents in fluids. Such as liquids and gases.Conduction-is the transfer of energy through solids of different temperature by direct contact.

Vocabulary

Video

Second Law of Thermodynamics

Heat moves from HOT to COLD, unless work is done.

Third Law of Thermodynamics

First Law of Thermodynamics

Energy cannot be created or destroyed.

Absolute zero cannot be reached