Mechanics of Materials Quiz

Rigid body Statics is the study of bodies and structures that are in equilibrium. For a body to be in equilibrium, there must be no net force acting on it. In addition, there must be no net torque acting on it.

Moment of Inertia (M.I) is the measure of an object's resistance to changes in its rotation speed. It is significant in mechanics of materials as it helps in determining how the mass of an object is distributed around the axis of rotation, thus affecting its rotational energy and stability.

Hooke’s law states that the force needed to extend or compress a spring by some distance is proportional to that distance. It relates to elasticity by providing a mathematical expression for the behavior of elastic materials under tension or compression.

<p>The stress-strain diagram illustrates the relationship between stress (force per unit area) and strain (deformation) in a material. For ductile materials, it shows a distinct yield point and plastic deformation before failure, while for brittle materials, it exhibits a sudden fracture. It is used to analyze the mechanical properties and behavior of materials under different loading conditions.</p> Signup and view all the answers

<p>Viscosity is the measure of a fluid's resistance to deformation. Viscous drag is the force opposing the relative motion of an object through a fluid, arising from viscosity. Surface tension is the tendency of a liquid surface to minimize its surface area. They are related as they all pertain to the behavior of fluids and their interactions with solid objects or other fluids.</p> Signup and view all the answers

<p>No net force and no net torque</p> Signup and view all the answers

<p>Resultant</p> Signup and view all the answers

<p>Resistance to rotational motion</p> Signup and view all the answers

<p>The relationship between stress and strain in elastic materials</p> Signup and view all the answers

<p>The force resisting the motion of an object through a fluid</p> Signup and view all the answers