Compression of the piezoelectric crystal results in:

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Multiple Choice

Compression of the piezoelectric crystal results in:

Explanation:
Compression pushes atoms closer together, reducing the material’s volume and increasing the number of particles per unit volume. So the particle density rises when you compress a piezoelectric crystal. The other ideas don’t fit: expanding or heating would spread atoms apart and reduce density (thermal expansion), and compression does change the spacing, so there isn’t a “no change” result.

Compression pushes atoms closer together, reducing the material’s volume and increasing the number of particles per unit volume. So the particle density rises when you compress a piezoelectric crystal. The other ideas don’t fit: expanding or heating would spread atoms apart and reduce density (thermal expansion), and compression does change the spacing, so there isn’t a “no change” result.

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