Advertisements
Advertisements
Question
When an object is heated, the molecules that make up the object
Options
begin to move faster
lose energy
become heavier
become lighter
Advertisements
Solution
Begin to move faster
APPEARS IN
RELATED QUESTIONS
Select the correct alternative
A thermometer uses
Define the term calorie. How is it related to joule (the S.I. unit of heat)?
Complete the following sentence:
CGS units of heat is _________
The unit of heat and temperature are the same.
We feel the heat on our body when the ______ shines.
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.
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 |
You would have noticed some space being left on railway tracks. Why?
In which of the following, chemical energy is converted into heat energy?
