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In the source's discussion of elasticity, what is a deformation?
AA change in an object's temperature caused by friction
BA permanent increase in an object's mass
CThe speed at which an object moves under a force
DA change in shape due to the application of a force
Answer & Solution
Correct answer: D. A change in shape due to the application of a force
1. A deformation is defined right at the start of this topic on elasticity.
2. A deformation is a change in shape due to the application of a force.
3. It does not refer to a change in mass, a speed, or a change in temperature, so those options describe different physical quantities entirely.
4. Deformation is the shape-based idea that Hooke's law and stress and strain are all built on.
_Source: OpenStax College Physics (CC BY 4.0), Ch 5 "Further Applications of Newton's Laws: Friction, Drag, and Elasticity", section 5.3 Elasticity: Stress and Strain_
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