Advertisements
Advertisements
प्रश्न
Give a scientific reason for the following:
Old quits are less warm than the new ones.
Advertisements
उत्तर
Old quilts are less warmer than new ones because the cotton in the old quilt gets compressed and very little air will remain trapped in it, hence heat insulation is quite poor
APPEARS IN
संबंधित प्रश्न
Who is telling the truth?
The temperature of a substance is measured in joules.
Correct the following statement:
The boiling point of water is 273 K.
What do you mean by temperature?
Is it possible to boil water in a thin paper container? Explain with a reason.
Analogy
Heat : Joule :: Temperature : _____
Suppose your normal body temperature were lower than what it is. How would the sensation of hot and cold change?
Heat energy is always transferred from ______ to ______ temperatures.
Give reasons why –
a steam burn is more damaging than a burn caused by boiling water at the same temperature.
Give reasons why –
an igloo is built as a winter shelter
Which factor determines the direction of flow of heat from one body to another?
