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प्रश्न
Select the correct alternative
A thermometer uses
विकल्प
water
mercury
air
none of the above
MCQ
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उत्तर
mercury
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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 |
Define one kilo-calorie of heat.
Name the SI unit of heat.
1 calorie is 4.81 joules.
If you apply some heat energy to a substance, which of the following can take place in it?
Why does the bottom of a lake not freeze in severe winter though the surface is all frozen?
We feel the heat on our body when the ______ shines.
Black color is a ______ absorber of heat.
Match the following
| 1. | Heat | a. | Good absorber |
| 2. | Temperature | b. | Form of energy |
| 3. | Black surface | c. | Insulators |
| 4. | Rubber, cork | d. | The measure of hotness or coldness |
The sum of the kinetic and potential energy is called the ______ of the molecules.
