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| Anything that has mass and takes up space |
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Measure of the amount of matter in an object
NOT the same as weight |
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| Amount of space an object occupies |
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Also called the state of matter
Solid, liquid, gas or plasma |
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| Phase of matter with a fixed shape and a fixed volume |
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| Phase of matter with a fixed volume but an indefinite shape (takes the shape of its container) |
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Phase of matter with no definite shape and no definite volume
Expands to fill its container |
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Hot gas made up of electrically charged particles
Lightning and stars are examples |
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The theory that describes the motion of molecules at various temperatures
Increasing temperature increases molecular motion
Decreasing temperature decrease molecular motion |
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Definition
A physical transformation of the state of matter
Examples:
Condensation
Evaporation
Boiling
Freezing
Melting |
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| a transformation from one state of matter to another with no change in chemical composition |
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| A transformation involving the rearrangement of atoms to form new substances (the chemical composition or identity is changed) |
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Phase change from gas to liquid
Process requires a decrease in energy |
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Phase change from liquid to gas
Occurs at the surface of a liquid
Process requires an increase in energy |
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Phase change from liquid to gas
Occurs when a liquid is heating to its boiling point temperature
Process requires an increase in energy |
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Phase change from liquid to solid
Process requires a decrease in energy |
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Definition
Phase change from solid to liquid
Process requires an increase in energy |
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Definition
| Transfer of heat that occurs when objects/substance come in physical contact with each other |
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| Heat transfer within a fluid (liquid or gas) caused by the circulation of heated portions of the fluid |
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Definition
Heat transfer through infrared radiation
Thermal energy moving as waves |
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