# 8 – Flashcard
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What is the purpose of valve overlap?
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It allows better volumetric efficiency and lowers cylinder operating temperatures. JSPT 1-36
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what is the heat in the atmosphere that moves from place to place
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radiation
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tings are always _________
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moving
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the more _______ you give to a substance the more it moves
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heat
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________ causes heat and ____ causes movement
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movement heat
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every atom has ________ inside itself
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movement
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the earths _______ absorbs energy from the sun
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surface
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some energy is transferred back into the __________
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atmosphere
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gas molecules are constsntly ______
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moving
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cold molecules move more _______
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slowly
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hot molecules move more ______
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fastly
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the total energy of motion is called ________ energy
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thermal
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___________ is the average amount of energy of motion in each molecule of substance
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temperature
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the basic matter of which something is made
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substance
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98.6 degrees is the _____________ temp. of humans
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average body
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_____________ is 1 of the most important elements of weather
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temperature
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air temp.is measured with a _____________
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thermometer
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the liquid inside of a themometer is __________________ or ________
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colored alcohal or mercury
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thermo means
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heat
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meter
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measure
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a thermometer works because liquids _______ when heated and __________ when cooled
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expand contracts
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one of something
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unit
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why is mercury and alchohal used in thermometers
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it has low and high freezing points
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all ____________ have different freezing points
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substances
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alchohal boils at ___ and freezes at ___
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144 -148.5
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mercury freezes at ___ and boils at ___
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-38 674
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mercury symbol
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Hg
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temp. is measured in ________
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degrees
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there are 2 different kinds of therm _________ and _________
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farenheit and celsius
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you feel heat through ____________ radiation
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ultra violet
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heat is transferred from ______ molecules to ______ molecules
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hotter colder
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heat is transferred in 3 ways _________, ___________, ______________
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radiation conduction convection
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you (can or can not ) see IR heat with normal vision
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can not
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__________ heat spreds out and warms air
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radiation
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__________ is the type heat that ia transferred by directly touched heat transferred from oe substance to another
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conduction
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the closer together molecules the more _________ they can conduct heat
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effectively
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__________ is the transfer of heat thru the movement of afluid warm air rises and cool air sinks
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convection
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______ heat warms the atmosphere
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all
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__________ currents move thru the troposphere
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convection
