Question

To keep her soup warm Paheli wrapped the container in which it was kept with a woolen cloth. Can she apply the same method to keep a glass of cold drink cool? Give a reason for your answer

Answer 1

Conductor:

1. A substance that permits the energy in the form of heat to be moved inside it without the substance itself moving is called a thermal conductor.
2. Conductivity is the characteristic of conductors that allows them to produce electricity.

Insulator:

1. Insulators are materials that prevent electrons from freely flowing from one component of an element toward another.
2. Whenever users apply some charge to such a component at any location, this same charge persists at the original place and does not spread throughout the surfaces.
3. Woolen is a bad conductor of heat, that is it is an insulator.

Therefore, yes, a woolen fabric can be used to preserve a glass of cold drink cool since woolen is an insulator that prevents heat from escaping or entering.