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प्रश्न
Fill in the blank
Heat is a form of _______.
पर्याय
electrical energy
gravitational energy
thermal energy
None of these
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उत्तर १
Heat is a form of energy.
उत्तर २
Heat is a form of thermal energy.
संबंधित प्रश्न
Name the three modes of transfer of heat.
Cooking utensils are made from metals due to their property of ______.
What will absorb heat?
Steel spoon
What will absorb heat?
Wooden board
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?
1 calorie is 4.81 joules.
The process of converting a liquid into a solid is called ________.
The amount of heat gained by a substance is equal to the product of its mass and latent heat.
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.
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.
Observe the picture given in figure. Water is being boiled in a pan of wide base.
- Which position P or T will feel warmer?
- Fill up the boxes P and T to indicate the mode of flow of heat to the hand.
The water in the black can becomes ______ than that in a white can after exposure to the sun.
Assertion: Small gaps left between railway lines.
Reason: It allows for the contraction of rails during summer.
You would have noticed some space being left on railway tracks. Why?
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?
