A bi-metallic strip is made of two different metals, X and Y, bonded together. When heated, metal X expands more than metal Y. What will happen to the strip?
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Worked Solution
Step 1: Metal X expands more (becomes longer) than Y.
Step [2-9]: Since they are bonded, X must curve around Y to accommodate its extra length.
Step [2-9]: This causes the strip to bend toward the side of the metal that expanded less (Y).
Correct answer: It will bend towards metal Y.
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