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Thermal Energy

TermDefinition
energy the ability to cause change
temperature the measure of the average kinetic energy of the particles of an object
thermal energy the total kinetic energy of an object
heat energy that is transferred between objects due to a temperature difference
specific heat the amount of heat needed to raise the temperature of 1 kg of that material by 1 degree celcius
density the mass per unit volume of a substance
conduction the transfer of thermal energy by collisions between particles (from molecule to molecule)
convection the transfer of thermal energy in a fluid (gas or liquid) by the movements of warmer and cooler fluids.
radiation the transfer of energy by waves (i.e. light waves)
thermal insulator a material that thermal energy moves through very slowly
mechanical energy the sum of the potential and kinetic energy in a system of objects
solar collector a device that transforms radiant energy from the sun into thermal energy
thermodynamics the study of the relationships between thermal energy, heat and work.
1st law of thermodynamics heat is a form of energy and under the law of conservation of energy, heat energy cannot be created or destroyed.
second law of thermodynamics energy spreads from regions of higher concentration to areas of lower concentration. Entropy increases.
heat engine a device that converts some thermal energy into mechanical energy
internal combustion engine a heat engine that burns fuel inside a set of cylinders
Created by: PRO Teacher jhaase