A uniform cube is subjected to volume compression. If each side is decreased by 1.5%, then the bulk strain is:
Correct answer: A. 0.045
- A. 0.045
- B. 0.03
- C. 0.45
- D. 4.5
Explanation
For small changes, the bulk strain (ΔV/V) is approximatelythree times the linear strain (ΔL/L). Since each sidedecreases by 1.5% (or 0.015), the total bulk strain isapproximately 3 × 0.015 = 0.045.
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Solids are compared through crystal structure, amorphous arrangement, elasticity, plastic deformation, stress, strain and Young’s modulus. Electrical behavior depends on available charge carriers and band structure, so conductors, insulators and semiconductors must be distinguished from mechanical properties such as strength, stiffness and brittleness.
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