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Physical Science1
Physical Science 1
Term | Definition |
---|---|
Atom | the basic particle from which all elements are made |
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 which molecules at the surface of a liquid absorb enough energy to change to a gas. |
freeze | the temperature in which liquid freezes. |
gas | av state of matter with no definite shape or volume. |
inert | having little or no ability to react. |
Kinetic energy | energy that a object has due to its motion |
liquid | a state of matter that has no definite shape but definite volume |
matter | anything that has mass and take up space |
melt | temperature when substances change from a solid to a liquid. |
molecule | a neutral group of 2 or more atom held together by covalent bonds |
particle | smallest unit of matter |
particle motion | ways atoms,ion, or molecules move |
phase | a physically distinctive form of matter without change in chemical composition |
phase change | change from one state to another without change in chemical compostition. |
pressure | the physical force exerted on an object |
pure substances | substance made of one matter having definite property's. |
solid | a state of matter that has definite shape and volume |
system | a group of parts that work together as a hole |
temperature | a measure of the average energy of motion of the particles of a substance |
thermal energy | the total kinetic and potential energy of motion of the particles of a substance |
vapor | gaseous state of a substance that is a liquid or a solid at room temperature |
conduction | the transfer of thermal energy from one object to another |
covection | the transfer of thermal energy by movement of fluid |
radiation | the transfer of energy by electromagnetic waves |