Which of the following is a characteristic property of piezoelectric materials?
A.
They generate an electric charge when subjected to mechanical stress.
B.
They expand uniformly when heated.
C.
They are always found in crystalline form.
D.
They have a high melting point compared to other solids.
Exam No：AP Chemistry Problem Set 8 Year：2024 Question No：APChemistry2024AP0434
Answer:
A
Knowledge points:
3.2 Properties of Solids
Solution:
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