1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Thermal Expansion - Conceptual

  1. Nov 2, 2007 #1
    1. The problem statement, all variables and given/known data
    For each of the following statements, determine whether is is correct or incorrect.

    A. An iron plate has a hole cut in its center. When the plate is heated, the hole gets smaller.

    B. When the Celsius temperature doubles, the Fahrenheit temperature doubles.

    C. Cold objects do not radiate heat energy.

    D. When the pendulum of a grandfather clock is heated, the clock runs more slowly.

    E. In a bimetallic strip of brass and copper which curls when heated, the brass is on the inside of the curve.

    F. When heat is added to a system, the temperature must rise.



    2. Relevant equations



    3. The attempt at a solution

    A. INCORRECT
    B. INCORRECT
    C. INCORRECT
    D. CORRECT
    E. INCORRECT
    F. CORRECT

    Are these right?
     
  2. jcsd
  3. Nov 2, 2007 #2
    Anyone have an idea on these?
     
  4. Nov 4, 2007 #3
    Okay I changed my answers to....

    A. INCORRECT
    B. INCORRECT
    C. INCORRECT
    D. CORRECT
    E. INCORRECT
    F. CORRECT

    and they aren't right, does anyone know where I am going wrong?
     
  5. Nov 4, 2007 #4

    hage567

    User Avatar
    Homework Helper

    Hmmm, your answers don't look any different than what was in your first post. But anyway, reconsider your answer for F.
     
  6. Nov 4, 2007 #5
    Oops...I meant to put...
    A. INCORRECT
    B. INCORRECT
    C. INCORRECT
    D. CORRECT
    E. CORRECT
    F. INCORRECT (Thanks)

    I am confused about E?
     
  7. Nov 4, 2007 #6

    hage567

    User Avatar
    Homework Helper

    I think you had E right the first time.
     
  8. Nov 4, 2007 #7
    Oh okay...thank you much!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Thermal Expansion - Conceptual
Loading...