Name: Steve B.
Status: student
Age: 40s
Location: N/A
Country: N/A
Date: 2000-2001

Question:
Will a metal, regardless of size expand the same when
heated? for example, will a 1 meter metal rod that expands 1/2 cm when
heated expand the same 1/2 cm if the rod was 100 meters long and similary
heated?

Replies:
Steve-

No, the metal, if 100 times longer, will have a change in length that is
100 times as much. The formula for linear expansion is:
delta L = alpha L delta T
L is length
delta L is change in length
alpha is the coefficient of linear expansion (different for different
materials)
delta T is the change in temperature.

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