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प्रश्न
Who is telling the truth?
Objects contract on heating.
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उत्तर
Sentence is lying as objects expand on heating.
संबंधित प्रश्न
Who is telling the truth?
Joule is the unit of heat.
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.
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?
Steam is formed when heat is released from water.
Analogy
Total Kinetic Energy of molecules: Heat :: Average Kinetic Energy : ______.
Make a list of electrical equipments at home which we get heat from.
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.
