Question { Bosch, 9791 }

what is difference between
(pressure and stress),
(sencitivity and
efficiency) .

Answer

1st diff
stress: "the force of resistance per unit area ,offered by a
body against deformation"
pressure: "a normal force exerted by a fluid per unit are "

2nd diff
stress formed in only i solids
pressure formed in both liquid and gas(fluids )
3rd diff
stress is internal effect
pressure is external effort