Which of the following assumptions are required to conduct an experiment to accomplish the goal of measuring Young's modulus?
The change in cross-sectional area that occurs when stress is applied can be safely neglected in calculating
Young's modulus.
The material is uniform; in other words, the strain of one part of it is the same as the strain in another part
when the same stress is applied.
The material is elastic; it is returning to its original length (and thickness) when the stress is no longer
applied.
Friction is negligible at the point where the stress is being applied to the material.
The mass of the material is much less than the mass of the ring stand.
The force is being applied uniformly across the cross-sectional area of the material being stretched.