Physics Flashcards - Fluids and Solids

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Author:
awc1990
ID:
212354
Filename:
Physics Flashcards - Fluids and Solids
Updated:
2013-04-09 21:59:20
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Physics Flashcards Fluids Solids
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Physics Flashcards - Fluids and Solids Kaplan MCAT P28-P33
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  1. What is the equation for density? 

    ρ =
    ρ =  = 
  2. What is the density of H2O?
    ρwater = 1000kf/m3 = 1g/cm3
  3. What is specific gravity?
    Specific gravity is the ratio of a substance's density to the density of water.
  4. What is the formula for calculating pressure?

    P =
    P =  = 
  5. What is the formula for absolute presure in a liquid?
    P = (surface pressure) + (ρ)(gravity)(depth) = P0 + ρgh
  6. What is gauge pressure?
    Gauge pressure is the pressure in excess of atmospheric pressure.
  7. (T/F) Pascal's Principle states that a change in pressure applied to an enclosed fluid is transmitted undiminished to every position of the fluid and to the walls of the container.
    True.
  8. What is the relationship between the area and forces when the system is in equilibrium? 

  9. (T/F) Both pistons move the same distance when a force is applied to one of them.

    False, the larger piston will move by a smaller distance.
  10. What is the formula for buoyant force? 

    FB =
    FB = ρgV

    where ρ is the density of the fluid and V is the volume of the object immersed in the fluid.
  11. Given a pipe of varying cross sections, how do fluid velocity and cross-sectional area relate throughout the pipe?
    A1V1 = A2V2

    (volume flow rate is constant)
  12. (T/F) According to Bernoulli's Equation, as fluid velocity increases, absolute pressure decreases.
    True.
  13. What is viscosity?
    Viscosity is the measure of the internal friction of a fluid.
  14. Does the viscosity of a liquid generally increase or decrease as temperature rises?
    An increase in temperature generally causes the viscosity of a liquid to decrease.
  15. What is the formula for Young's Modulus?

    Y =

    Y = 

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