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Solids, Liquids, Gas
vocabulary for the unit Solids, Liquids, Gases
| Question | Answer |
|---|---|
| solid | matter that has a definite shape and definite volume |
| liquid | matter that has an indefinite shape but a definite volume |
| gas | matter that has an indefinite shape and an indefinite volume |
| surface tension | uneven forces acting on the particles on the surface of a liquid |
| plasma | is high energy matter consisting of positively and negatively charged particles |
| viscosity | a measurement of a liquid's resistance to flow |
| crystalline solid | is a solid that has its particles arranged in specific repeating order |
| amorphous solid | is a solid that has its particles arranged in a random order |
| cohesion | the attraction between molecules that are alike |
| vapor | The gas state of a substance that is usually a solid or liquid at room temperature |
| kinetic molecular theory | an explanation of how particles in matter behave |
| Pressure | is the amount of force applied per unit of area |
| Boyle’s law | states that pressure of a gas increases if the volume decreases and pressure of a gas decreases if the volume increases, when temperature is constant |
| kinetic energy | energy of motion |
| Charles’s law | states that the volume of a gas increases with increasing temperature, if the pressure is constant. |
| absolute zero | The lowest possible temperature at which particles no longer move |
| temperature | measure of the average kinetic energy of all the particles in an object |
| potential energy | stored energy resulting from the interactions between particles and objects |
| thermal energy | total potential and kinetic energy of an object |