Science
The mass per unit volume of a substance is called density. (Density = Mass/Volume ). Arrange the following in order of increasing density – air, exhaust from the chimneys, honey, water, chalk, cotton and iron.
Related Questions
A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?
What are the characteristics of the particles of matter?
(a) Tabulate the differences in the characteristics of states of matter.
(b) Comment upon the following:
rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density.
Give reasons
(a) A gas fills completely the vessel in which it is kept.
(b) A gas exerts pressure on the walls of the container.
(c) A wooden table should be called a solid.
(d) We can easily move our hand in the air, but to do the same through a solid block of wood, we need a karate expert.