solids
Solid
rock is a solid so the physical properties are that of solids rigid definite mass and volume that is definite density cannot flow incompressible there are exceptions
There are three states of matter, solid, liquid and gas. The state of matter wherein particles are fixed in a rigid structure is solid.
Solids. They are most resistant to outer forces; but strictly speaking all materials are compressible.
No. A triangle is the only rigid polygon.
Solids are incompressible because the atoms or molecules that make up a solid are already closely packed together. When an external force is applied to a solid, the atoms resist being pushed closer together due to their strong intermolecular forces and rigid structure, making them difficult to compress.
Gas and liquid are not rigid.
degenerate matter would be incompressible. This would not be ordinarily met with, but is considered to be the material of a neutron star. Where, upon the collapse of a giant star, the gravitational forces would collapse all the neutron matter to a solid. Fond subject of sci-fi writers, e.g. Larry Niven (I think) wrote a story with the title Neutron Star, which will give a rough guide to the supposed physics.
degenerate matter would be incompressible. This would not be ordinarily met with, but is considered to be the material of a neutron star. Where, upon the collapse of a giant star, the gravitational forces would collapse all the neutron matter to a solid. Fond subject of sci-fi writers, e.g. Larry Niven (I think) wrote a story with the title Neutron Star, which will give a rough guide to the supposed physics.
No, water is not completely incompressible, but it is very difficult to compress compared to other substances.
The only convex polygon that is rigid is a triangle.
Matter can be classified according to its composition Solid: has a definite shape, mass & volume & are highly rigid. They cannot flow, have high density, are almost incompressible & have any no. of free surfaces. Liquid: has a definite mass & volume but no fixed shape & are less rigid. They can flow & take up the shape of the container in which it is stored. Gas: have a definite mass but have no fixed volume or shape & is not at all rigid. They can flow & take up the shape & volume of the container in which it is stored.