Fluid Mechanics: Terminal Velocity
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Questions and Answers

What is the unit of viscosity coefficient?

  • kg/m.s
  • N.s/m²
  • Pa.s
  • All of the above (correct)

    • What is the condition for a spherical object to reach terminal velocity?

  • When the velocity is minimum
  • When the velocity is maximum
  • When F₁ = F₂ + F₃ (correct)
  • When F₁ = F₂ - F₃

    • What is the direction of the buoyant force on a spherical object?

  • Upward (correct)
  • Horizontal
  • Diagonal
  • Downward

    • What is the direction of the gravitational force on a spherical object?

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

    What is the expression for the viscous force (F₃) on a spherical object?

    <p>3πrηvt</p> Signup and view all the answers

    What is the formula derived by equating the gravitational force, buoyant force, and viscous force on a spherical object?

    <p>$\frac{2}{9} \frac{ρ-σ}{η} = \frac{g}{v_t}$</p> Signup and view all the answers

    What is the proportional relationship between the amount of heat produced and the amount of work done in Joule's experiment?

    <p>Q = W/J</p> Signup and view all the answers

    What is the unit of the mechanical equivalent of heat?

    <p>Joules per calorie</p> Signup and view all the answers

    What is the purpose of Joule's experiment?

    <p>To establish a relationship between the amount of work done and the amount of heat produced</p> Signup and view all the answers

    What is the value of the mechanical equivalent of heat?

    <p>4.186 joules per calorie</p> Signup and view all the answers

    What is the original method used in Joule's experiment to produce heat?

    <p>Using a paddle wheel to stir a container of water</p> Signup and view all the answers

    What is the unit of the amount of heat produced in Joule's experiment?

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

    What is the specific heat of the used liquid?

    <p>0.65 cal/g°C</p> Signup and view all the answers

    What is the specific heat of the iron calorimeter?

    <p>0.101 cal/g°C</p> Signup and view all the answers

    What is the voltage of the power supply adjusted to?

    <p>10 volts</p> Signup and view all the answers

    What is the maximum current of the power supply?

    <p>2 amperes</p> Signup and view all the answers

    What is the purpose of the stirrer?

    <p>To ensure the homogeneity of the temperature</p> Signup and view all the answers

    What is the formula for the energy supplied?

    <p>W = IV</p> Signup and view all the answers

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