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प्रश्न
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उत्तर
Water is a bad conductor of heat
An ice cube is wrapped into a wire mesh and is put at the bottom of the glass test tube. The test tube is then heated near the top of the water. It will be noticed that though the water at the top starts boiling, the ice at the bottom does not melt. This clearly shows that water is a poor conductor of heat.
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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 |
What will absorb heat?
Iron griddle (tava)
What will absorb heat?
Glass
Complete the following sentence:
CGS units of heat is _________
Which temperature segment is chosen when determining the unit of heat? Why?
The unit of heat and temperature are the same.
Calorie is the unit of ______.
We feel the heat on our body when the ______ shines.
Warm air is ______.
The sum of the kinetic and potential energy is called the ______ of the molecules.
