Physics Flashcards

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1
Q

isobaric

A

process that occurs at constant pressure, area under the curve is equal to the work done on the piston by the gas, pressure is constant but volume changes

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2
Q

isochoric

A

the volume is kept constant so no work is done

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3
Q

isothermal

A

temperature is allowed to escape, so as temperature stays constant, pressure must decrease, work is still the area under the curve

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4
Q

adiabatic

A

when no heat is transferred between system and enviornment

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5
Q

specific gravity

A

density of substance / density of water

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6
Q

hydrostatic gauge pressure

A

the pressure exerted by a liquid, hydrostatic = not moving, gauge = dont factor in air

gauge pressure = density of fluid * g * depth

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7
Q

archimedes principle

A

the magnitude of the buoyant force is equal to the weight of the fluid displaced by the object

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8
Q

flow rate vs flow speed

A

flow rate tells how much fluid flows per unit time and flow speed gives velocity of fluid

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9
Q

continuity equation

A

as cross sectional area decreases, speed of a liquid increases

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10
Q

ideal fluid flow

A
  1. fluid in incompressible
  2. negligible viscosity
  3. laminar flow
  4. flow rate is steady

This means total mechanical energy is conserved

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11
Q

bernoulli’s equation

A

pressure + 1/2 * density * flow speed^2 + density * g *y

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12
Q

pressure through a tube

A

a smaller area results in a higher speed, but a lower pressure

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13
Q

adjustements for real gas equation

A

pressure and volume, real gases have higher volumes and lower pressures

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