Temperature and Expansion ```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. ---Nathan A. Unterman Click here to return to the Physics Archives

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