Quiz on Liquids and Viscosity
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Questions and Answers

Which state of matter has a definite shape and volume?

  • Solid (correct)
  • Liquid
  • Gas
  • All of the above

Gases have a definite shape and volume.

False (B)

What is viscosity?

A measure of a liquid’s resistance to flow.

Increasing temperature __________ a liquid’s viscosity.

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

Match the following factors to their effects on viscosity:

<p>Temperature = Increases viscosity when decreased Concentration = Increases viscosity when increased Attractive Forces = Makes it difficult for particles to flow Particle Size = Smaller particles result in lower viscosity</p> Signup and view all the answers

Which of the following fluids is considered viscous?

<p>Corn syrup (B)</p> Signup and view all the answers

Fluids do not include solids.

<p>True (A)</p> Signup and view all the answers

Name two types of fluids used in everyday life.

<p>Water and oil.</p> Signup and view all the answers

Flashcards

Viscosity

The ability of a fluid to resist flowing. It determines how easily a liquid flows.

Viscosity & Friction

A fluid's resistance to flow is related to the friction between its particles. The higher the friction, the more difficult it is for the particles to move past each other, leading to higher viscosity.

Flow Rate

The speed at which a fluid moves from one point to another.

Temperature & Viscosity (Liquids)

As temperature increases, the particles in a liquid move faster, overcoming attractive forces between them, leading to lower viscosity.

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Concentration & Viscosity

Increasing the concentration of a substance dissolved in a liquid increases the number of particles, leading to greater friction and higher viscosity.

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Attractive Forces & Viscosity

Liquids with stronger attractive forces between their particles have higher viscosity because they are more difficult to separate.

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Particle Size & Viscosity

Liquids with smaller particles have less resistance to flow and lower viscosity because they can move past each other more easily.

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Temperature & Viscosity (Gases)

Gases have the opposite relationship between temperature and viscosity compared to liquids. As temperature increases, gas particles move faster, increasing their collision frequency and therefore viscosity.

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