Advertisements
Advertisements
Question
Suggest two methods to find out wind direction at a given place.
Advertisements
Solution 1
The following are the two methods to find out the direction of wind.
1) While flying a kite, air exerts pressure on the kite due to which the kite flies. The direction in which the kite flies is the direction of blowing of wind.
2) While riding a bicycle, the direction in which it is difficult to ride is opposite to the direction of the blowing wind.
Therefore, while flying a kite or riding a bicycle, the wind direction at a given place can be determined.
Solution 2
1) Take a piece of a paper in your hand. Allow it to fall from your hand. It will flow in the direction in which wind is blowing.
2) You can also use a wind-pane which helps us to know accurate wind direction.
RELATED QUESTIONS
When we press the bulb of a dropper with its nozzle kept in water, air in the dropper is seen to escape in the form of bubbles. Once we release the pressure on the bulb, water gets filled in the dropper. The rise of water in the dropper is due to
The atmospheric pressure is nearly 105 Pa.
Explain the following :
Two holes are made in a completely filled sealed tin can to take out oil from it .
How is water drawn up from a well by a water pump?
How does the atmospheric pressure change with altitude? Draw an approximate graph to show this variation.
State briefly, how and why the atmospheric pressure of a place varies with the altitude. Draw an approximate graph to illustrate this variation.
What is an aneroid barometer?
Draw a neat and labeled diagram to explain its construction and working.
Give reason:
Air pressure decreases with increasing altitude.
Air pressure is expressed in ______.
