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प्रश्न
What do you mean by heat?
उत्तर
Heat is defined as a form of energy which flows from one point to another on account of temperature difference.
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संबंधित प्रश्न
Draw a diagram showing the temperature of various layers of water in an ice covered pond.
Explain the following
In winter, water tanks (or ocean) start freezing from the surface and not from the bottom.
Define temperature and write its SI unit.
Explain the following:
Water is heated generally from below.
The following figure shows a rectangular box with two tubes P and Q at the top. A burning candle R is placed under the tube P. The candle burns brightly.
Explain:
(i) How is the air in the box circulating?
(ii) What will happen if the opening Q is closed?
Analogy
Heat : Joule :: Temperature : _____
When a window is accidentally left open on a winter night, will you feel uncomfortable because the cold is getting in, or because the heat is escaping from the room?
The temperature of boiling water is ______.
