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physical science 1
Term | Definition |
---|---|
atom | the basic partical of which all elements are made the smallest partical of an element that has properties of that element |
boil | the change in state from a liquid to a gas |
condense | the change in state from a gas to a liquid |
evaporate | the process by which molecules at the surface create enough energy to change into a gas |
freeze | the tempature at which a liquid freezes |
gas | a state of matter whith no definite shape or volume |
inert | having a little or no ability to react |
kinetic ability | energy that an object has due to its motion |
liquid | a state of matter that has no definite shape but has a definite volume |
matter | anything that has a mass or takes up space |
melt | the tempature at which the state of solid to liquid |
molecule | a neutral group of two atoms held together by bonds |
particle | smallest possible unit of matter |
particle motion | the way in which atom ions and molecule move |
phase | a physical distinctive form of matter such as solid liquid or gas |
phase change | a change from one state soliid liquid or gas to another whithout a change of in chemical position |
pressure | the physical force exerted on an object |
pure substance | a substance made of only one type of matter and having a definite propeties |
solid | a state of matter that has a definite shape and volume |
system | a group of parts that work together as a whole |
temperature | a mesure of the average energy of motion of the particals of an substance |
thermal energy | the total potental and kinetic energy of all particals of an substance |
vapor | gaseous state of an substance that is liquid or a solid at room tempature |
conduction | the transfer of thermal energy from one object too another |
convection | the transfer of thermal energy from one object to another through fluid |
radiation | the transfer of energy through electro magnet waves |