Question

(b) Comment upon the following:
rigidity, compressibility,
fluidity, filling a gas
container, shape, kinetic
energy and density.
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Answer 1

Answer:

this are the term by which we can classify matter

Answer 2

$\fbox\red{ Rigidity }$

– Rigidity can be expressed as the tendency of matter to resist a change in shape.

$\fbox\pink{Compressibility}$

– Compressibility is the ability to be reduced to a lower volume, when force is applied.

$\fbox\green{ Fluidity }$

– Fluidity is the ability to flow.

$\fbox\blue{By filling a gas}$

– By filling a gas container we mean the attainment of shape of the container by gas.

$\fbox\purple{Shape}$

– Shape defines a definite boundary.

$\fbox\orange{Kinetic Energy}$

– Kinetic Energy is the energy possessed by a particle due to its motion.

$\fbox{Density}$

– Density is mass per unit volume.

Hope it helps you dear.