Advertisements
Advertisements
Question
Match the following
| Column A | Column B |
| 1. mercury | 1. insulator |
| 2. wood | 2. water from 0°C to 4°C |
| 3. Aluminum | 3.absorbs |
| 4. contracts | 4.conductor |
| 5.black surface | 5. Thermometer |
Advertisements
Solution
|
Column A |
Column B |
| 1. mercury | 5. Thermometer |
| 2. wood | 1. insulator |
| 3. Aluminum | 4. conductor |
| 4. contracts | 2. water from 0°C to 4°C |
| 5.black surface | 3. absorbs |
APPEARS IN
RELATED QUESTIONS
Name the three modes of transfer of heat.
Draw a labelled diagram of a thermo flask. Explain how the transfer of heat by conduction, convection and radiation is reduced to a minimum in it.
Write scientific reason.
In the cold regions, snow falls in winter.
The process of converting a liquid into a solid is called ________.
Define one calorie.
A device in which the loss of heat due to conduction, convection and radiation is minimized is ______.
We feel the heat on our body when the ______ shines.
When an electric current is passing through the conductor ______ energy is produced.
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?
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?
