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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?
Atoms of a solid are free.
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 heat contained in a substance is the measures of the ______ kinetic energy of atoms in the substance.
Explain why rails have gaps at specific distances.
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?
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.
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 |
