Water beads are pretty and swell up by absorbing water. Let us drop some water beads into a bowl of water and watch them move. The beads randomly move as they collide with each other and hit the bowl. Temperature is a measure of the kinetic energy (energy that keeps them moving) of the beads. The pressure is a measure of how hard the beads hit the bowl.
Though each bead moves at a different speed at any time, there is an average speed of the beads. The larger this speed, the larger is the kinetic energy of these beads. Hence, higher is their temperature.
Pressure depends on the speed of the beads hitting the bowl and how many hit the bowl every second. More the beads in the water, the larger is the number that hits the bowl. Hence, higher is the pressure of beads on the bowl. Similarly, the larger the speed of beads, the larger is the pressure.
The analogy of beads here applies to all elementary particles – molecules, atoms, electrons, etc. – that makes up any material.
Author: Dr. Gururaj Naik.
LinkedIn Profile: Visit here.
