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Ch.10 Vocab

QuestionAnswer
temperature a measure of how hot (or cold) something is; specifically, a measure of the average kinetic energy of the particles in an object
thermal expansion an increase in the size of a substance in response to an increase in the temperature of the substance
absolute zero the temperature at which molecular energy is at a minimum (0 K on the Kelvin scale or –273.16ºC on the Celsius scale)
heat the energy transferred between objects that are at different temperatures
thermal energy the kinetic energy of a substance's atoms
thermal conduction the transfer of energy as heat through a material
thermal insulator a material that reduces or prevents the transfer of heat
convection the movement of matter due to differences in density that are caused by temperature variations
radiation the energy that is transferred as electromagnetic waves, such as visible light and infrared waves
specific heat the quantity of heat required to raise a unit mass of homogeneous material 1 K or 1ºC in a specified way given constant pressure and volume
states of matter the physical forms of matter, which are solid, liquid, gas, and plasma
change of state the change of a substance from one physical state to another
insulation a substance that reduces the transfer of electricity, heat, or sound
heat engine a machine that transforms heat into mechanical energy, or work
thermal pollution a temperature increase in a body of water that is caused by human activity and that has a harmful effect on water quality and on the ability of that body of water to support life
Created by: zoey1472
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