A bimetallic strip is made of two different metals, X and Y, bonded together. Metal X expands more than Metal Y when heated. What will happen to the strip when it is placed in a flame?
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Worked Solution
Step 1: Both metals gain heat and expand.
Step [2-9]: Since Metal X expands more, it becomes longer than Metal Y.
Step [2-9]: To accommodate the longer length on one side, the strip curves with the longer metal (X) on the outside, meaning it bends towards Metal Y.
Correct answer: It will curve towards Metal Y.
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