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प्रश्न
Name the SI unit of heat.
Write the SI unit of heat.
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उत्तर
Joule (J) is the SI unit of heat.
संबंधित प्रश्न
Match the following
| Column A | Column B |
| 1. mercury | 1. insulator |
| 2. wood | 2. water from 0°C to 4°C |
| 3. Aluminum | 3.absorbs |
| 4. contracts | 4.conductor |
| 5.black surface | 5. Thermometer |
Select the correct alternative
A thermometer uses
What will absorb heat?
Iron griddle (tava)
What will absorb heat?
Water
What will absorb heat?
Wooden board
What will absorb heat?
Glass vessel
Which temperature segment is chosen when determining the unit of heat? Why?
The unit of heat and temperature are the same.
Define one calorie.
Calorie is the unit of ______.
Ice is kept in a double-walled container. Why?
______ energy can be generated by the burning of fuels like coal, wood, charcoal, gasoline, etc.
In the past, people used to rub two wooden pieces together to light fire.
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.
Black color is a ______ absorber of heat.
Assertion: Small gaps left between railway lines.
Reason: It allows for the contraction of rails during summer.
What is heat energy?
On a cold day, it is hard to open the lid of a tight container. But when you gently heat the neck you can easily open the lid. why?
Warm air is ______.
