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31 terms

Motion, Forces, & Energy - Chapter 6

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temperature
measure of the average kinetic energy of the particles in an substance (p168)
Fahrenheit scale
the temperature scale on which 32 and 212 are the temperatures at which water freezes and boils (p169)
Celsius scale
the temperature scale on which 0 and 100 are the temperatures at which water freezes and boils (p169)
Kelvin scale
the temperature scale on which 0 is the temperature at which no more energy can be removed from matter (p169)
absolute zero
the temperature scale on which no more energy can be removed from matter (p170)
heat
thermal energy that is transferred from one substance to another (p171)
conduction
the transfer of heat between particles within a substance (p172)
convection
the transfer of heat by the movement of currents within a fluid (p173)
convection current
a current caused by the rising of heated fluid and sinking of cooled fluid (p173)
radiation
the transfer of energy by electromagnetic waves (p174)
conductor
the transfer of heat between particles within a substance (p172)
insulator
a material that does not easily transfer heat between its particles (p175)
specific heat
the amount of heat required to raise the temperature of 1 kilogram of a substance by 1 kelvin (p176)
states
the three forms (solid, liquid, and gas) in which matter exists (p182)
change of state
the physical change of matter from one state to another (p182)
melting
the change from the solid to the liquid form of matter (p183)
melting point
the temperature at which a substance melts( (p183)
freezing
the change from the liquid to the solid form of matter (p184)
freezing point
the temperature at which a substance freezes (p184)
vaporization
the change from the liquid to the gaseous form of matter (p184)
evaporation
vaporization that occurs at the surface of a liquid (p184)
boiling
vaporization that occurs on and below the surface of a liquid (p184)
boiling point
the temperature at which a liquid sustance boils (p184)
condensation
the change from the gaseous to the liquid form of matter (p185)
thermal expansion
the expansion of matter when it is heated (p185)
thermostat
a device that regulates temperature (p186)
bimetallic strip
a strip made of two different metals that expands at different rates (p186)
heat engine
a device that converts thermal energy into mechanical energy (p187)
combustion
the process of burning fossil fuel to produce thermal energy (p187)
external combustion engine
an engine powered by fuel burned outside the engine (p188)
internal combustion engine
an engine that burns fuel inside cylinders within the engine (p188)