Phases of Matter and Fluid Statics Quiz
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Questions and Answers

What property distinguishes a liquid from a gas?

  • Fixed volume (correct)
  • Definite shape
  • Ability to conduct electricity
  • Any shape and easily compressed
  • Which phase of matter has a definite shape and size?

  • Plasma
  • Gas
  • Liquid
  • Solid (correct)
  • What stress is the only stress present in fluid statics?

  • Tensile stress
  • Shear stress
  • Normal stress (correct)
  • Compressive stress
  • In which type of fluid mechanics is fluid flow considered?

    <p>Fluid Dynamics</p> Signup and view all the answers

    Which force applied over a smaller area results in greater pressure?

    <p>Normal force</p> Signup and view all the answers

    In which type of problems is fluid statics relevant?

    <p>Fluids at rest</p> Signup and view all the answers

    What is the formula for the pressure at depth h in a liquid?

    <p>Ph = P0 + \rho gh</p> Signup and view all the answers

    How is absolute pressure related to gauge pressure and atmospheric pressure?

    <p>Pabs = Pg + Patm</p> Signup and view all the answers

    What is gauge pressure?

    <p>Pressure above atmospheric pressure</p> Signup and view all the answers

    What is the average standard atmospheric pressure at sea level?

    <p>1.01 atmosphere (atm)</p> Signup and view all the answers

    What happens if there were a gaping hole in a tire?

    <p>The gauge would read zero</p> Signup and view all the answers

    Why does a tire gauge read zero at atmospheric pressure?

    <p>It is designed to ignore atmospheric pressure</p> Signup and view all the answers

    Which principle causes atmospheric pressure to add to the total pressure in any fluid not enclosed in a rigid container?

    <p>Pascal's principle</p> Signup and view all the answers

    What does gauge pressure measure?

    <p>Pressure relative to atmospheric pressure</p> Signup and view all the answers

    What does absolute pressure represent?

    <p>Absolute pressure</p> Signup and view all the answers

    Which assumption about fluid flow does the concept of ideal flow make?

    <p>The fluid is compressible, leading to varying density.</p> Signup and view all the answers

    What is the path that a particle takes in steady flow called?

    <p>Streamline</p> Signup and view all the answers

    What happens if fluid particles flow into or out of the sides of a tube of flow in steady flow?

    <p>The streamlines would cross each other.</p> Signup and view all the answers

    Which phase of matter does fluid statics primarily apply to?

    <p>Liquid</p> Signup and view all the answers

    What force applied over a smaller area results in greater pressure?

    <p>Large force</p> Signup and view all the answers

    What is the formula for the pressure at depth h in a liquid?

    <p>$P = \rho gh$</p> Signup and view all the answers

    According to the equation of continuity for fluids, what is the relationship between the cross-sectional area of the pipe and the fluid speed at that cross section?

    <p>A1v1 = A2v2</p> Signup and view all the answers

    What is the equivalent representation of the condition 'Av = constant' in the equation of continuity for fluids?

    <p>Volume of fluid entering = Volume of fluid leaving</p> Signup and view all the answers

    What does the equation of continuity imply about the speed and cross-sectional area of a fluid stream as it rises?

    <p>Speed increases, cross-sectional area decreases</p> Signup and view all the answers

    In the context of water flow through a pipe, if the internal diameter is 20cm and the speed is 1m/s, what should the diameter of the nozzle be for the water to emerge at a speed of 4m/s?

    <p>5cm</p> Signup and view all the answers

    What is the mass flow rate in kg/sec if 9.5 × 10^-4 m3 of fluid with a density of 1030 kg/m3 flows into a patient every six hours?

    <p>0.591 kg/sec</p> Signup and view all the answers

    What is defined as the rate of flow in the context of the equation of continuity for fluids?

    <p>The volume passing through an area in unit time</p> Signup and view all the answers

    Which statement accurately represents the relationship between mass and velocity in the context of fluid flow?

    <p>'m' is directly proportional to 'v'</p> Signup and view all the answers

    How does reducing the cross-sectional area of a garden hose affect the water speed according to the equation of continuity?

    <p>Speed increases as area decreases</p> Signup and view all the answers

    'Av', which has dimensions of volume per unit time, represents:

    <p>Flow rate</p> Signup and view all the answers

    What is defined as constant according to the equation of continuity for fluids?

    <p>Volume * Velocity</p> Signup and view all the answers

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