Volume Expansion and Thermal Expansion Quiz
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Questions and Answers

What happens to the area of a circular plug with increasing temperature?

  • Increases (correct)
  • Decreases
  • Becomes irregular
  • Remains constant

    • What effect does the removal of a plug have on the hole it leaves?

  • The hole shrinks
  • The hole becomes larger (correct)
  • The hole remains the same size
  • The hole becomes irregular

    • What is the coefficient of volume expansion represented by in the equation ΔV = 3αVΔT?

  • γ
  • β (correct)
  • θ
  • σ

    • Which substance does not follow the general rule of expanding with increasing temperature?

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

    At what temperature is water densest according to the text?

    <p>+4°C</p> Signup and view all the answers

    What happens when water near the surface of a pond cools down to 4°C?

    <p>It sinks to the bottom</p> Signup and view all the answers

    What is the relationship between the change in volume of Block B and the change in volume of Block A?

    <p>The change in volume of Block B is four times the change in volume of Block A.</p> Signup and view all the answers

    How does the change in cross-sectional area of Block B compare to the change in cross-sectional area of Block A?

    <p>The change in cross-sectional area of Block B is twice the change in cross-sectional area of Block A.</p> Signup and view all the answers

    How does the change in height of Block B compare to the change in height of Block A?

    <p>The change in height of Block B is twice the change in height of Block A.</p> Signup and view all the answers

    A copper bar that is 80 cm long at 15°C is heated to 35°C. What is the increase in the length of the bar?

    <p>0.08 cm</p> Signup and view all the answers

    A steel plate has a hole with a diameter of 0.99970 cm at 30°C. What temperature must the plate be heated to in order to allow a copper cylinder with a diameter of 1.00000 cm at 30°C to slide into the hole?

    <p>60°C</p> Signup and view all the answers

    A copper rod is 20 cm longer than an aluminum rod at a certain temperature. What should the length of the copper rod be if the difference in their lengths is to be independent of temperature?

    <p>60 cm</p> Signup and view all the answers

    What is the formula used to determine the amount of liquid spilled?

    <p>$V_{spill} = (\beta_{gas} - \beta_{s}) V \Delta T$</p> Signup and view all the answers

    What is the effect of tightly capping the tank to prevent overflow?

    <p>It will cause the tank to burst due to the expansion of the gas.</p> Signup and view all the answers

    What is the purpose of the air gaps in rigid containers?

    <p>To allow the container to expand and contract without stressing the material.</p> Signup and view all the answers

    If the temperature changes, what is the relationship between the change in volume of Block A and Block B?

    <p>The change in volume of Block B is four times the change in volume of Block A.</p> Signup and view all the answers

    What is the relationship between the change in cross-sectional area $l \times w$ and the change in height $h$ for the two blocks?

    <p>The change in cross-sectional area and the change in height are the same for both blocks.</p> Signup and view all the answers

    What is the significance of the amount of liquid spilled, as mentioned in the discussion?

    <p>The amount of liquid spilled is significant, particularly for a 60.0-L tank.</p> Signup and view all the answers

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