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प्रश्न
Define the term heat.
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उत्तर
The kinetic energy due to random motion of the molecules of a substance is known as its heat energy.
संबंधित प्रश्न
Select the correct alternative
A thermometer uses
What is heat ? State its S.I. unit.
Define the term calorie. How is it related to joule (the S.I. unit of heat)?
If you apply some heat energy to a substance, which of the following can take place in it?
Which of the following substances will absorb more heat energy?
How can heat energy be generated?
To keep her soup warm Paheli wrapped the container in which it was kept with a woollen cloth. Can she apply the same method to keep a glass of cold drink cool? Give reason for your answer.
In summer, we prefer light – colored clothes and in winter we usually wear dark – colored clothes.
Which of the following is true?
