| Term | Definition |
|---|
| Bernoulli's Principle | When the speed of a fluid increases, the pressure drops |
| Flotation principle | a floating object displaces a weight of fluid equal to its own weight |
| Displacement Principle | a completely submersed object will displace a volume of liquid equal to its own volume |
| Archimedes Principle | an immersed object is buoyed up by a force equal to the weight of the fluid it is placed in |
| Boyle's Law | the pressure exerted by a gas is inversely proportional to the volume exerted by a gas |
| Pascals Principle | changes in pressure at any point in an enclosed fluid at rest are transmitter undiminished to all points in the fluid and in all directions |
| Proton charge | + |
| Neutron charge | no charge |
| Electron charge | - |
| Solid | Particles as close together as possible and vibrate |
| Gas | Molecules of a gas are as far apart as possible and free to move rapidly and independently of each other |
| Liquid | Molecules are as close together as possible and free to move at fixed distances from each other |
| why cant you see a atom through a regular Microscope? | because they are smaller than a wavelength of light |
| Liquid Barometer | you have a tube filled with mercury and and you turn it over into a dish also filled with murcury and it creates a vaccuum at the top, and the pressure of the atmosphere puches the murcury in the plate down and thats what measures pressure |
| Aneroid barometer | its a closed enclosed box that has one flexible side the goes in and out and that how pressure is measured |
| What device depends on Pascals principle to work? | the brakes in the car / the hydraulic lift at a service station |
| what device depends on Bernoulli's principle? | an airplanes wings because the curve of the wing causes air to have less pressure on the top and more on the bottom causing lift |
| what creates a buoyant force? | the difference between the upward force and the downward force |
| Mass density | a measure of how tightly packed a material is M/V g/cm3 |
| Weight Density | weight per unit volume W/V lbs/ft3 |
| Specific Gravity | the ratio of the density of a metal to the density of water no units |
| how charges are effected when they get bigger in scale | volume, mass, and weight increase by cubed |
| how charges are effected when they get bigger in scale | area, cross surface area, muscles and bones. increase by squared |
| Pressure | Pascals (Pa) |
| Pressure formula | P=F/A |
| Isotope | a form of an element having a particular number of neutrons in the nuclei of its atoms |
| Nucleon | particles in the nucleus the principle building blocks of the nucleus |
| Ion | an atom with a net electric charge which due to the loss or gain of electrons |
| Atomic number | Number of protons in the nucleus of an atom |
| Brownian Motion | Random movement observed amount microscopic particles suspended in a fluid medium |
| Elasticity | an elastic material is a material that can be deformed by a force and then return to its original shape when the force is removed |
| Tension | The pulling apart of the materials of a solid when a compressing force is applied |
| Elastic limit | the point where a deformed material can no longer return to its original shape |
| Buoyancy | a force opposite gravity exerted by a liquid, upward force is called a buoyant force |
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