Question

Describe a simple activity to show the random motion of particles of matter

Answer 1

(a) Activity to show evidence for motion of
particles: Take two glass beakers. Fill one
beaker with hot water and another with
cold water. Add KMnO4 crystals in very
small amount in both. Hence we observe
the motion of particles that , the particles
of KMnO4 move fastly in hot water than in
cold water.
(b) Activity to show evidence for attraction
between particles: Take a piece of iron
and a piece of chalk. Try to break them.
We come to know that iron is too hard to
break. From this , we say that the
particles of matter have forces acting
between them. That force kept the
particles together. The force of attraction
between particles is maximum in solids
and minimum in gases.