Question

why a new quilt is warmer than an old one​

Answer 1

A new quilt is warmer because the air which is trapped inside the cotton or woollen clothing acts as an insulator an does not allow the transfer of heat.

However, when the quilt gets older, the air spacing of cotton or wool gets compressed. It no longer remain a good insulator. Hence, the person didn't feel warm.

Hope this will help you:)

Answer 2

Answer:

1)This exands on heating so iron rims are heated.

2)Mercury has a slight band or kink in its capillary tube.

3)The old ones fibres are weared off in due course of times.

4)Brass is a thin plate or sheet of metal while wood is a thicker lodge.

5)Because the black colour absords heat faster than other colour.

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