Advertisements
Advertisements
Question
State two experiences that made you think that air exerts pressure.
Advertisements
Solution 1
We have experienced that when we blow a balloon, the balloon becomes tight. If we try to fill more air, then the balloon will burst after an extent. This happens because air exerts pressure.
We have also experienced the movement of fringes of windows and doors of our houses when wind blows in a high speed. This also happens because air exerts pressure.
Solution 2
1) Balloons and balls can be used only when they are inflated with air. When balloon is overfilled with air it bursts due to excessive air pressure.
2) Compressed air is used in the brake system for stopping trains.
APPEARS IN
RELATED QUESTIONS
How is the barometric height of a simple barometer affected if Its tube is slightly tilted from vertical?
Briefly state the variations in the vertical distribution of pressure.
Give reasons for the following:
The Westerlies in the Southern Hemisphere blow with greater force than those in the Northern Hemisphere.
Give reasons for the following:
Temperature and pressure are inversely related to one another.
State two advantages of an aneroid barometer.
If there is low pressure at the equator, what will be the condition of air pressure in the Arctic Zone?
What effect does temperature have on air pressure?
Air pressure is expressed in ______.
As we go from the equator of the earth to pole of the earth, the value of acceleration due to gravity ______.
Briefly explain the concept of variation of atmospheric pressure.
