Understanding Particle Suspensions

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Questions and Answers

Which force acts on a particle immersed in a liquid and is in the opposite direction of the gravitational force?

  • Centripetal force
  • Friction force
  • Electrostatic force
  • Lifting (Archimedes) force (correct)

What is the total force acting on a particle in a suspension, considering both the gravitational force and the lifting (Archimedes) force?

  • $F = F_g + F_p$
  • $F = F_g - F_p$ (correct)
  • $F = F_g / F_p$
  • $F = F_g \cdot F_p$

What is the expression for the gravitational force acting on a particle in a suspension?

  • $F_g = \rho_s \cdot V \cdot g$
  • $F_g = \rho \cdot V \cdot g$ (correct)
  • $F_g = m \cdot g$
  • $F_g = \mu \cdot V \cdot g$

What is the expression for the lifting (Archimedes) force acting on a particle in a suspension?

<p>$F_p = \rho_s \cdot V \cdot g$ (C)</p> Signup and view all the answers

When the total force acting on a particle in a suspension is not zero, what will happen to the particle?

<p>It will move at a certain speed (A)</p> Signup and view all the answers

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