40 True/False questions

absolute temperature → term for temperature expressed in Kelvin

vacuum → True or False: Air has weight.

Blaise Pascal → term for the pressure created when air molecules hit each other and any surface exposed to them

absolute pressure → term for the pressure due only to a gas itself

Avogadro's Law → law that states that at a given temperature and pressure, two gases of the same volume have the same number of molecules

Boyles's Law → law that states that at constant pressure, the volume of a gas is directly proportional to its absolute temperature

True → unit that represents approximately 6.022 x 10^23 molecules

Evangelista Torricelli → Christian physicist and philosopher who discovered that there was a lower column of mercury in a barometer at a higher elevation

narrower, velocity → term for the pressure created when air molecules hit each other and any surface exposed to them

Bernoulli's principle → principle that states that lateral pressure decreases as the rate of flow increases

atmospheric pressure → term for the pressure due only to a gas itself

"horror vacui" → the ancient scientific principle that states that a vacuum is impossible to create because nature immediately fills any empty space with the nearest matter it can find

aneroid barometer → preferred instrument that measures atmospheric pressure using mercury

entrained → True or False: Air has weight.

direct proportion → type of relationship in which one quantity increases and another increases by the same factor

gauge pressure → term for the pressure created when air molecules hit each other and any surface exposed to them

V1/T1 = V2/T2 → equation for the combined gas law

Archimedes' principle → principle that states that the weight lost by an object suspended in a fluid equals the weight of the displaced fluid

1.0 atm, 760 mm Hg, 760 torr → the value of the universal gas constant (with units)

Add or subtract the gauge pressure from the atmospheric pressure. → term for the pressure that will support a mercury column exactly 460 mm tall at 0 degrees C

Aristotle → term for any object with surfaces designed to create lift into the air

0.0821 L atm/K mole → formula for Charles's Law

No → Is the principle of "horror vacui" true?

P1V1 = P2V2 → equation for Boyles's Law

P1V1/T1 = P2V2/T2 → equation for the combined gas law

siphon → term for a simple device for transferring liquid from a higher container to a lower container

nitrogen → term for a simple device for transferring liquid from a higher container to a lower container

inverse proportion → type of relationship in which one quantity increases and another increases by the same factor

Charles's Law → law that states that at a constant temperature the volume of a gas is inversely proportional to its pressure

standard atmospheric pressure → term for the pressure that will support a mercury column exactly 460 mm tall at 0 degrees C

pneumatic device → term for any device that transports air or that is driven by air pressure

mercury barometer → preferred instrument that measures atmospheric pressure using mercury

R → letter that represents the universal gas constant

manometer → unit that represents approximately 6.022 x 10^23 molecules

airfoil → term for any object with surfaces designed to create lift into the air

fluids → True or False: Air has weight.

mole → True or False: Air has weight.

PV = nRT → formula for the ideal gas law

absolute zero (0 K) → term for the pressure due only to a gas itself

air pressure → term for the difference in height between the columns of an openended manometer