Understanding Fluid Mechanics
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Questions and Answers

What do liquids and gases have in common?

  • They have a high density
  • They yield to shearing forces (correct)
  • They have a fixed shape
  • They resist shearing forces

    • Why does wood float while brass sinks in water?

  • Brass has a lower density than water
  • Wood has a lower density than water (correct)
  • Wood has a higher density than water
  • Brass has a higher density than water

    • What is the effect of temperature on the density of solids and liquids?

  • The density remains constant with temperature
  • The effect of temperature on density is negligible
  • The density normally increases with temperature (correct)
  • The density normally decreases with temperature

    • What happens to atmospheric pressure during big weather changes?

    <p>It falls below average</p> Signup and view all the answers

    What happens to body nitrogen as a scuba diver surfaces?

    <p>It returns to a gaseous state</p> Signup and view all the answers

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