KERALA PSC / PHYSICS / ELASTICITY / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY / NOTES

 

KERALA PSC / PHYSICS / ELASTICITY / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY / NOTES

KERALA PSC / PHYSICS / ELASTICITY / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY / NOTES

·      Elasticity is the ability of a body to return to its original shape and size on the removal of the deforming force.

·      Glass is more elastic than steel and steel is more elastic than rubber

·      If a body does not regain its original size and shape after the removal of deforming force, it is called a plastic body and this property is called plasticity. Eg: Clay, Plasticine etc…

·      The internal force per unit of cross section of a strained body is called stress. SI unit is NM¯² or Pascal. 1 Giga Pascal = 1 GPa = 10⁹ Pa

·      The ratio of change in dimension to the original dimension is called strain. It has no unit.

KERALA PSC / PHYSICS / ELASTICITY / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY / NOTES