Advertisements
Advertisements
Question
Explain which mode of heat transfer causes sea breezes and land breezes.
Advertisements
Solution
Sea breezes and land breezes are caused by the mode of heat transfer called convection.
-
Sea Breeze (Daytime):
- During the day, the land heats up faster than the sea due to the difference in heat capacity.
- The warm air over the land rises, creating a low-pressure area.
- Cooler, denser air from the sea moves in to replace it, creating a sea breeze from the sea to the land.
-
Land Breeze (Nighttime):
- At night, the land cools down faster than the sea.
- The warm air over the sea rises, creating a low-pressure area.
- Cooler air from the land moves toward the sea, forming a land breeze from the land to the sea.
RELATED QUESTIONS
Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that ______.
Fill in the blank
A hot metallic piece is placed in tap water contained in a bucket. Heat will flow from _______ to _________
Select the correct alternative
The vacuum kept in between the walls of a thermos flask reduces the heat transfer by
Conduction of heat takes place through a ______ substance.
The earth receives heat from the sun by ______.
Why are the houses in Rajasthan painted white?
Why is the outer coat of the penguins of Antarctica black?
Match the items in column-I to the items in column-II
| Column-I | Column-II | ||
| 1. | Linear expansion | (a) | change in volume |
| 2. | Superficial expansion | (b) | hot body to cold body |
| 3. | Cubical expansion | (c) | 1.381 X 10-23 JK-1 |
| 4. | Cubical expansion | (d) | change in length |
| 5. | Boltzmann constant | (e) | change in area |
The handles of cooking utensils are made of ______.
