| A | B |
|---|
| Fluid | any material that flows; gases and liquids |
| Displace | to push out of the way |
| Force | a push or a pull |
| Buoyant Force | the upward force of a fluid |
| Density | the amount of mass in a certain volume of a substance (g/mL, g/cm3) |
| Hydrometer | a device that uses buoyancy to measure the density of liquids directly. |
| Pressure | a force acting on a certain area of a surface. p = F/A, units are N/m2 or Pa |
| Confined fluids | a fluid completely enclosed in a container. |
| Imcompressible | not able to squeeze into smaller volume when pressure is applied. |
| Fluid pressure | pressure exerted on the inner surface of a closed container, due to the fact that liquids are nearly incompressible. |
| Compressible | albe to squeeze into a smaller volume. Example: when a force is exerted on a confined gas, its volume shrinks. |
| Barometer | an instrument for measuring air pressure. |
| Mercury barometers | a device containing a column of mercury, used to measure air pressure (used in many weather stations). |
| Aneroid | without liquid; as in an aeroid barometer. |
| Manometer | a U-shaped tube containing a liquid, used to measure pressure of other gases. |
| Hydrolic System | a system that works because of the movement of a liquid or the force of a lior the force of a liquid in a closed system. |
| Pump | a device for moving a fluid. |
| Particle theory | all matter is made of tiny particles, these tiny particles are ALWAYS moving, and when heated these particles move faster and further apart. |
| Qualitative | observations made using your senses. Example - fast, slow, tall, short, dark light |
| Quantitative | observations made using numbers. Examples - 30 km/h, 1.65 cm, 10 mL/s |
| Cubic centimeters | unit used on a syringe in some parts of the world. 1 cc = 1cm3 = 1 ml |
| Viscosity | a liquid's "thickness", or resistance to flow. |
| Flow rate | quantitative method of observing viscosity. (measured in mL/s) |
| Valves | are devices that regulatesthe flow of a fluid. |
| Buoyancy | tendency to float. |
| Sphygmomanometer | a special typr of manometer used to measure maximum and minimum blood pressure. |
| Pascal | A standard SI unit for pressure - the pascal (Pa) - 1 Pa = 1 N/m2 |
| Drag | a force that acts to slow a body that is moving through a fluid. |
| Aerodynamics | relating to the effect of air on objects moving through it, or concerning the flow of air around objects. |
| Turbulence | swirling motions within a fluid. |
| Property | gas (g), liquid (l), solid (s) |
| Flow | the ability to move |
