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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.
Define the term heat.
Define the term calorie. How is it related to joule (the S.I. unit of heat)?
What will absorb heat?
Water
What will absorb heat?
Wooden spoon
Give scientific reason.
Dew drops form on the grass in winter.
Find the odd one out and give its explanation.
1 calorie is 4.81 joules.
Write scientific reason.
In the cold regions, snow falls in winter.
When an object is heated, the molecules that make up the object
If you apply some heat energy to a substance, which of the following can take place in it?
We feel the heat on our body when the ______ shines.
The sun gives us light and heat.
A circular metal loop is heated at point O as shown in the following figure.
- In which direction would heat flow in the loop?
- 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?
In summer, we prefer light – colored clothes and in winter we usually wear dark – colored clothes.
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 |
Arrange the following in order of decreasing the expansion of heating: Steel, milk, air.
The sum of the kinetic and potential energy is called the ______ of the molecules.
Explain the following effects of heat.
Chemical changes
