Question

comment on the following : 1 rigidity . 2 fluidity .3 shape 4 kinetic energy 5 density

Answer 1

hey your answer is here
rigidity_ it is the property of solids to maintain shape against external force.

fluidity_ tendency to flow of liquids and gases is called fluidity.

kinetic energy_ the energy possessed by particles due to their motion is called kinetic energy.

density_mass per unit volume is called density.
hope its help you

Answer 2

Rigidity: The condition which do not alters the shape of solids.

Compressibility: Compressing particles of gases

is called compressiblity.

Filling a gas container: In the laboratory, after the preparation of gases, they are collected in gas jar. This is called filling a gas container.

Fludity: Fluidity means flowing of liquids freely.

Shape: Things are in which form is called shape.

Kinetic energy: The energy possessed by moving body is called kinestic energy.

Density: Density is the mass per unit.