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PSV1
Question | Answer |
---|---|
atom | the basic particle from which all elements are made; the smallest particle of an element that has the properties of that element |
boil | the change in state from liquid to gas |
condense | the change in state gas to liquid |
evaporate | the process by which molecules at the surface of a liquid absorb enough energy to change to a gas |
Freeze | the temperature at which liquid freezes |
Gas | A state of matter with no definite shape or volume |
Inert | Having little or no ability to react |
Kinetic Energy | Energy that an object has due to its motions. |
Liquid | a state of matter that has no define shape or volume |
matter | anything that has mass and takes up space |
melt | the temperature at which a substance changes solid to liquid |
molecule | a neutral group of 2 or more atoms held together by covalent bonds |
particle | smallest possible unit in matter |
particle motion | ways of atoms, ions, or molecules move |
phase | a physically distinctive form of matter, such as solid, liquid, or gas |
Phase change | a change from 1 state(solid, liquid or,gas) to another without a change in chemical compostion |
pressure | The physical force exerted on an object. |
pure substance | A substance made of only one kind of matter and having definite properties. |
solid | A state of matter that has a definite shape or volume. |
system | A group of parts that work together as a whole. |
temperature | A measure of the average energy of motion of the particles of a substance. |
Thermal Energy | The total kinetic and potential energy of all the particles of an object. |
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. |
Convection | The transfer of thermal energy by the movement of fluid. |
Radiation | The transfer of energy by electromagnetic waves. |