Advertisements
Advertisements
प्रश्न
Define the term calorie. How is it related to joule (the S.I. unit of heat)?
लघु उत्तरीय
Advertisements
उत्तर
One calorie of heat is the heat energy required to raise the temperature of 1 g of water from 14.5°C to 15.5°C.
1 calorie = 4.186 J
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
While deciding the unit for heat, which temperature interval is chosen? Why?
Cooking utensils are made from metals due to their property of ______.
What will absorb heat?
Wooden spoon
Write scientific reason.
In the cold regions, snow falls in winter.
The unit of heat is
Define one calorie.
Calorie is the unit of ______.
A marble tile would feel cold as compared to a wooden tile on a winter morning because the marble tile ______.
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?
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 |
