Stress in Physics
In physics, stress is a fundamental quantity that describes the forces present during deformation of a material. It is defined as the force acting on the unit area of a material and is generally expressed as force per unit area. There are different types of stress, including tensile stress (causing elongation), compressive stress (causing compression), bulk stress (squeezing from all sides), and shear stress (tangential forces causing deformation). Stress is a tensor quantity and is measured using units such as Pascal or N/m^2. It is an essential concept in continuum mechanics and is used to determine the internal distribution of forces in solid objects)/Book%3A_University_Physics_I_-Mechanics_Sound_Oscillations_and_Waves(OpenStax)/12%3A_Static_Equilibrium_and_Elasticity/12.04%3A_Stress_Strain_and_Elastic_Modulus_(Part_1)).
