Physical Science Midterms 2

22 terms by bhoyt96 

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thermal equalibrium

when two or more objects are at the same temperature and no more heat will flow

heat transfer

the flow of thermal energy from higher temperature to lower temperature

melting point

when a substance is hot enough to go from a liquid to a gas

absolute zero

lowest possible temperature

thermometer

device for measuring temperature

celsius

freezes at 0 and boils at 100

fahrenhiet

freezes at 32 and boils at 212

hetrogenious mixture

not the same through out

Homogenious mixture

looks the same throughout

covection

transfer of heat by the motion of matter such as air or water

thermal radiation

electromagnetic waves produced by objects because of thier temperature

conduction

transfer of heat by direct contact

specific heat

amount of heat needed to raise the temp of 1 kg by 1C

heat

thermal energy that can move

thermal energy

energy due to energy

temperature

measures the energy of molecules due to motion

mixture

combination of elements that can be separated by physical means

molecule

a group of two or more different elements chemically joined

atom

smallest particle of an element

element

cannot be broken by physical or chemical means

pure substance

matter that cannot be separated into other types of matter

compound

substance that contains two or more different elements chemically joined

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