Question

Explain some practical applications of convection.

Answer 1

1. In convection, the hotter molecules rise up and colder molecules move to take their place. This cycle leads to a rise in the convection current.
2. Some practical applications of convection are:
   (a) Smoke and gases after being heated up rise up and escape through the chimney.
   (b) Sea breeze, land breeze, and monsoon are convection currents in nature.
   (c) Birds use convection currents of air to rise high without flapping their wings.
   (d) Firemen crawl when they enter a building because smoke generates after fire rises upward, so it is safe to crawl and move into the building.