Abeka Physics Chapter 14
This set covers A Beka Book Physics Chapter 14: "Heat" (pages 206-221).
term for the measure of an object's molecular kinetic energy and molecular potential energy
term for the transfer of internal energy from one object to another
True or False: Heat always moves from a hotter object to a cooler object.
term for instruments that measure temperature
term for the process of measuring temperature
term for the state in which who objects are the same temperature
term for the temperature at which the three phases of water achieve equilibrium
4.58 mm Hg and 0 degrees C
pressure and temperature of the triple point of water
Gabriel Daniel Fahrenheit
German physicist who invented the mercury thermometer in 1714
the standard termperature scale employed for scientific purposes
When the temperature of a gas rises one degree Celsius, the gas expands by about ___ of its volume at 0 degrees Celsius.
term for the lowest obtainable temperature at which all gases should vanish
absolute zero in degrees Celsius
The Kelvin scale of temperature is called a(n) ____ ____ because its lowest possible temperature has the value of 0 K.
the ice point on the Celsius scale
the ice point on the Kelvin scale
Sir William Thomson (Lord Kelvin)
great nineteenth century physicist who devised the Kelvin scale of temperature
When its temperature rises, a solid ____ in every direction.
term for the expansion along any line through a solid
letter that represents the coefficient of linear expansion
True or False: Heat causes greater expansion of liquids than of solids.
a common unit of heat
the metric unit of heat
One calorie equals ___ Joule(s).
In general, it takes about __ calorie(s) to raise a gram of water one degree Celsius.
term for the heat required to raise a body's temperature by one degree
term for the heat required to raise the temperature of a unit mass by one degree
-Q lost = Q gained
equation for the law of heat exchange
term for a solid changing into a liquid
Since a solid will not actually enter the liquid phase unless heat is supplied by an external source at the melting point, melting is a(n) _____ process.
heat of fusion
term for the heat that must be absorbed per gram to melt a solid
term for a liquid changing into a solid
Because heat is released spontaneously by a freezing liquid, freezing is a(n) _____ process.
term for a liquid changing into a gas
heat of vaporization
term for the amount of energy a liquid absorbs at its boiling point to change into a gas
term for a gas changing into a liquid (the opposite of vaporization)
term for an insulated container in which scientists mix two substances
term for the use of a calorimeter to meaure the equilibrium temperature of a mixture
term for the transfer of heat energy from one part of a body to another
term for a material that conducts heat efficiently
term for a material that does not conduct heat efficiently
term for the amount of heat transferred from one end of a segment to the other per unit time
term for the constant of proportionality, k
the method of heat transfer in which agitated motion is transmitted between molecules in contact with each other
the method of heat tranfer in which heat is carried by moving material
the method of heat transfer in which a body at high temperature emits radiation that falls upon another body
conduction, convection, and radiation
the three methods of heat tranfer
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