Nelson-Denny Practice Test

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Enhance your vocabulary and reading comprehension skills with the Nelson-Denny test. Study with comprehensive flashcards and multiple-choice questions. Ensure your success with detailed explanations and insights!

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What does rigidity refer to?

Flexibility
Softness
Stiffness
Fragility

The correct answer is: Stiffness

Rigidity primarily refers to stiffness, which is the quality of being unbending and inflexible. In various contexts, such as materials or physical objects, something that is rigid does not easily change shape or position when a force is applied. This characteristic distinguishes rigid materials from those that are flexible or soft. For instance, in physics or engineering, a rigid body maintains its shape and does not deform under stress, while a flexible or soft material allows for deformation. Therefore, rigidity is associated with resistance to change in form, highlighting the concept of stiffness as the correct interpretation. Other terms like flexibility, softness, or fragility describe properties that are opposite to or do not encompass the idea of rigidity.