Strain is defined as the change in length of an object divided by its original length. True or False?

Strain is indeed defined as the change in length of an object divided by its original length. This definition highlights that strain is a dimensionless quantity representing how much a material deforms relative to its original size when subjected to stress. Specifically, strain quantifies the extent of deformation experienced by an object due to external forces, which can be tensile (stretching) or compressive (squeezing).

The formula for strain is typically expressed as:

[ \text{Strain} = \frac{\Delta L}{L_0} ]

where ΔL is the change in length and (L_0) is the original length. This ratio provides a clear understanding of how much a material stretches or compresses, making it a critical parameter in engineering and material science. Different materials may respond differently to the same stress, but the definition of strain remains universally applicable.