PHYMJ11: Mechanics & General Properties of Matter
Unit-4: 1. Elasticity
Reference:
1. University Physics – Sears & Zemansky’s 13th Ed.
2. Fundementals of Physics – Halliday & Resnick 9th Ed.
Sterlin Banaras Hindu Univers
,States of Matter
Solid Liquid Gas Plasma BEC
Some Characteristics of Solids, Liquids and Gases
Solid Liquid Gas Plasma Bose-Einstein cond
➢ Not easily ➢ Occupies the ➢ Occupies the ➢ Plasma is a ➢ Bose-Einstein conden
compressible shape of the shape of the superheated, ionized the fifth state of matt
Retains a fixed container container gas composed of when a gas of bosons
volume and ➢ Not easily ➢ Compressible positively charged ions particle) is cooled to
shape. compressible as more free and free electrons. just above absolute z
➢ Atoms are ➢ molecules space ➢ This electrically them to lose their ind
arranged in a can between conducting state exists identities and merge
regular periodic move/slide molecules naturally in stars, unified quantum enti
manner. past one ➢ Molecules can lightning, and the sun ➢ This "condensed" sta
➢ Not another. move past one ➢ It has a unique ability particles to behave as
compressible another to conduct electricity collective wave, exhib
➢ Atoms cannot and interact with phenomena such as s
move/slide past electromagnetic fields. and enabling the crea
one another. lasers.
, Elasticity
• Matters can be deformed (i.e., change in size, shape, and
volume) by the application of external forces (deforming
forces).
• A body is said to be perfectly elastic, if it regains its original
shape or size, when the deforming forces acting on it are
removed.
• This property of a matter (body) to regain its original state
when the deforming forces acting on it are removed is called
elasticity.
• Due to elasticity (physical property), matter can develop a
restoring force within itself to oppose any deforming forces
acting on it.
• A body which does not tend to regain its original shape or size, even w
deforming forces acting on it are removed, is called perfectly plastic bod
In nature no matter is either perfectly elastic or perfectly plastic.
Unit-4: 1. Elasticity
Reference:
1. University Physics – Sears & Zemansky’s 13th Ed.
2. Fundementals of Physics – Halliday & Resnick 9th Ed.
Sterlin Banaras Hindu Univers
,States of Matter
Solid Liquid Gas Plasma BEC
Some Characteristics of Solids, Liquids and Gases
Solid Liquid Gas Plasma Bose-Einstein cond
➢ Not easily ➢ Occupies the ➢ Occupies the ➢ Plasma is a ➢ Bose-Einstein conden
compressible shape of the shape of the superheated, ionized the fifth state of matt
Retains a fixed container container gas composed of when a gas of bosons
volume and ➢ Not easily ➢ Compressible positively charged ions particle) is cooled to
shape. compressible as more free and free electrons. just above absolute z
➢ Atoms are ➢ molecules space ➢ This electrically them to lose their ind
arranged in a can between conducting state exists identities and merge
regular periodic move/slide molecules naturally in stars, unified quantum enti
manner. past one ➢ Molecules can lightning, and the sun ➢ This "condensed" sta
➢ Not another. move past one ➢ It has a unique ability particles to behave as
compressible another to conduct electricity collective wave, exhib
➢ Atoms cannot and interact with phenomena such as s
move/slide past electromagnetic fields. and enabling the crea
one another. lasers.
, Elasticity
• Matters can be deformed (i.e., change in size, shape, and
volume) by the application of external forces (deforming
forces).
• A body is said to be perfectly elastic, if it regains its original
shape or size, when the deforming forces acting on it are
removed.
• This property of a matter (body) to regain its original state
when the deforming forces acting on it are removed is called
elasticity.
• Due to elasticity (physical property), matter can develop a
restoring force within itself to oppose any deforming forces
acting on it.
• A body which does not tend to regain its original shape or size, even w
deforming forces acting on it are removed, is called perfectly plastic bod
In nature no matter is either perfectly elastic or perfectly plastic.
