PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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1. 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? 
In cold winter season, room temperature is , but  than the environment.
 
We know that heat will transfer from .
 
When a window is left open on winter night,  escapes through these windows and an equal amount of  enters the room. So, the temperature will  further.
 
So, they feel .
 
2. Suppose your normal body temperature were lower than what it is.

How would the sensation of hot and cold change?
 
If the normal body temperature, () is lower than what it is, then it is called .
 
In such a case, the body feels .
 
When we are too cold, our blood vessels . This  blood flow to our skin to save body . We may start to shiver. When the muscles tremble this way, it helps to make .