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प्रश्न
Who is telling the truth?
The average kinetic energy of atoms in a hot object is less than the average kinetic energy of atoms in a cold object.
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उत्तर
Sentence is lying as the average kinetic energy of atoms in a hot object is greater than the average kinetic energy of atoms in a cold object.
संबंधित प्रश्न
Who is telling the truth?
Joule is the unit of heat.
Who is telling the truth?
Objects contract on heating.
Who is telling the truth?
Atoms of a solid are free.
The apparatus used to measure heat is called a ______.
Nishigandha kept a vessel containing all the ingredients for making tea in a solar cooker. Shivani kept a similar vessel on a stove. Whose tea will be ready first and why?
At 15∘C the height of Eifel tower is 324 m. If it is made of iron, what will be the increase in length in cm, at 30∘C?
Analogy
Total Kinetic Energy of molecules: Heat :: Average Kinetic Energy : ______.
When ______ flows through a conductor, heat energy is produced.
Match the following:
| 1. | Source of heat | a. | heat energy |
| 2. | Electric current | b. | calorie |
| 3. | Gasoline | c. | 37°C |
| 4. | Unit of heat | d. | Electric kettle |
| 5. | Human body temperature | e. | sun |
List and describe the sources of heat.
