Question

multiple choice question
a material is elastic if it
o can recover its shape after a force deforms it
o generates a sound wave when a force deforms it
o has a resonant frequency equal to the force applied to it
o can be stretched but not compressed when a force is applied to it
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Explanation:

Elasticity is a property of materials. When a force is applied to an elastic material, it deforms. But the key characteristic is that once the force is removed, the material can return to its original shape. The other options are not related to the definition of elasticity. Generating a sound wave (related to vibration - sound production), having a resonant frequency (related to wave - resonance concepts), and being stretchable but not compressible (elastic materials can generally both stretch and compress within elastic limit and return to original shape) are incorrect.

Answer:

can recover its shape after a force deforms it