Are These Thermal Expansion Statements Correct?

AI Thread Summary
The discussion revolves around the correctness of various statements related to thermal expansion and heat transfer. Participants evaluate statements about an iron plate with a hole, temperature scales, heat radiation, pendulum behavior, bimetallic strips, and system heat addition. The consensus indicates that statements A, B, C, and E are incorrect, while D is correct, and there is confusion regarding statement F, which was initially marked as correct but later debated. The conversation highlights the importance of understanding thermal properties and the behavior of materials under heat. Clarifications and corrections are made throughout the thread, emphasizing the learning process.
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Homework Statement


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.



Homework Equations





The Attempt at a Solution



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

Are these right?
 
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Anyone have an idea on these?
 
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?
 
Hmmm, your answers don't look any different than what was in your first post. But anyway, reconsider your answer for F.
 
Oops...I meant to put...
A. INCORRECT
B. INCORRECT
C. INCORRECT
D. CORRECT
E. CORRECT
F. INCORRECT (Thanks)

I am confused about E?
 
I think you had E right the first time.
 
Oh okay...thank you much!
 

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