Practice Bimetallic Strips (9.5.4) - Thermal Expansion of Solids, Liquids, and Gases

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6 sample questions

Question 1.
What is a bimetallic strip?
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Think about temperature control devices.
Question 2.
Why do bimetallic strips bend?
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Consider the properties of the metals.
3Question 3.
What causes a bimetallic strip to bend?
- Same metal expanding equally
- Different expansion rates of two metals
- No effect at all
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Focus on the differing characteristics of the metals.
4Question 4.
True or False: Bimetallic strips can consist of two identical metals.
- True
- False
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Think about the mechanics of bending.
Question 5.
Design a bimetallic strip for an application where rapid temperature changes occur. What materials would you choose and why?
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Consider the properties of metals under heat.
Question 6.
If a bimetallic strip consists of copper and brass, explain its expected behavior when heated compared to a strip of aluminum and steel.
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Think about the coefficients of these metals and their expansions.

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