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प्रश्न
Make a list of electrical equipments at home which we get heat from.
उत्तर
Water heater, Iron box, Electric kettle, Micro oven.
APPEARS IN
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.
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.
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?
Steam is formed when heat is released from water.
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.
