Advertisements
Advertisements
प्रश्न
State two experiences that made you think that air exerts pressure.
Advertisements
उत्तर १
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.
उत्तर २
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
संबंधित प्रश्न
Nose bleeding may occur at a high altitude because
Explain the following :
A balloon collapses when air is removed from it.
What is meant by the statement 'the atmospheric pressure at a place is 76 cm of Hg'? State its value in Pa.
A solid weighs 2.10 N in air. It has a relative density of 8.4. How much will the body weigh if placed: In water
Give reasons:
Why artificial pressure creates in Aircraft?
The standard air pressure at sea level is ______.
A low-pressure system is also called ______ and ______.
The highest air pressure at sea level was recorded at ______ Russia.
The small variations in pressure that exist largely determine the ______ and ______ patterns of the earth.
