| A | B |
|---|
| Matter | anything that takes up space and has mass |
| solid | matter with a definite shape and volume |
| liquid | matter that has a definite volume but no definite shape |
| viscosity | a liquids' resistance to flow |
| surface tension | uneven forces acting on the particles on the surface of a liquid |
| gas | matter that does not have a definite shape or volume |
| thermal energy | total kinetic and potential energy of all the particles in a sample of matter |
| temperature | the average kinetic energy of individual particles |
| heat | the movement of thermal energy from a substance at a higher temperature to one at a lower temperature |
| melting | the change from a solid state to a liquid state |
| freezing | the change from a liquid state to a solid state |
| vaporization | the change from a liquid state to a gas |
| condensation | a change from a gas to a liquid state |
| pressure | the equal force exerted on a surface divided by the total area over which the force is exerted |
| buoyant force | upward force on an object immersed in a fluid |
| Archimedes' Principle | the buoyant force on an object is equal to the weight of the fluid displaced by the object |
| density | mass divided by volume |
| Pascal's principle | when a force si applied to a confined fluid, an increase in pressure is transmitted equally to all parts of the fluid |
