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प्रश्न
Fill in the blank
Heat is a form of _______.
पर्याय
electrical energy
gravitational energy
thermal energy
None of these
उत्तर १
Heat is a form of energy.
उत्तर २
Heat is a form of thermal energy.
संबंधित प्रश्न
Select the correct alternative
A thermometer uses
Name the three modes of transfer of heat.
Define the term heat.
What will absorb heat?
Steel spoon
What will absorb heat?
Water
Which temperature segment is chosen when determining the unit of heat? Why?
If you apply some heat energy to a substance, which of the following can take place in it?
The process of converting a liquid into a solid is called ________.
Define one calorie.
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.
A circular metal loop is heated at point O as shown in Figure 4.6.
(i) In which direction would heat flow in the loop?
(ii) In which order are the pins at points P, Q and R fixed with the help of wax fall if points O, P, Q and R are equidistant from each other?
Black color is a ______ absorber of heat.
In summer, we prefer light – colored clothes and in winter we usually wear dark – colored clothes.
Which of the following is true?
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?
The sum of the kinetic and potential energy is called the ______ of the molecules.
Match the following:
| Column A | Column B | ||
| 1. | Heat | a. | Heat gained or lost in the change of state without any change in temperature |
| 2. | m × L. | b. | Heat gained or lost when there is no change of state |
| 3. | Temperature | c. | Form of energy |
| 4. | m × s × t | d. | SI unit of specific latent heat |
| 5. | J/Kg | e. | degree of hotness or coldness |
