Atmospheric pressure - Wikipedia

 

5 applications of atmospheric pressure

Oct 07,  · Applications of Pressure in Daily Life Some of the applications of pressure are given below. The area of the edge of a knife’s blade is extremely small. This creates a pressure high enough for the blade to cut through a material. Syringes are used to take blood for blood tests. The pressure Author: Veerendra. The applications of liquid pressure are: 1. The pressure at a certain depth in sea water is more than that at the same depth in river water. The reason is that the density of sea water is more than the density of river water. 2. The wall of a dam. Aug 07,  · 1) During the upstroke V1 closes and the pressure inside the barrel is reduced due to the increase in volume of the air inside it (Boyle's law) 2) The limitation of the lift pump is that it can to raise water up to a height of 10 m only since the atmospheric pressure cannot support a water column of height more than 10 m.


_Science And Technology_: Applications of Atmospheric Pressure


Question 1What type of pressure is involved in the filling of a liquid in a syringe? Question 2 What is a rubber sucker? Question 3 How does a rubber sucker works? Question 4 State few uses of rubber sucker?

Question 5 How does a syringe work? Question 6 What is a syringe? Question 7 How does a dropper work? Question 8 What is a dropper? The drinking straw is a very thin pipe which is used to drink Soft drinks. The drinking straw works on the existence of atmospheric pressure. The lower end of drinking straw is dipped in the soft drink. When we suck at the upper end of the straw with our mouth, the pressure of air inside the straw and in our inner mouth is reduced.

But the pressure acting on the surface of soft drink is equal to the atmospheric pressure. Greater atmospheric pressure acting on the surface of the soft drink pushes the soft drink up the straw into our mouth. A glass tube with a nozzle and Piston for sucking in and ejecting liquid in a thin stream is called syringe.

The syringe works on the existence of atmospheric pressure. When the nozzle of a syringe is dipped in a liquid and its piston is withdrawn, the pressure inside the syringe is lower. The greater atmospheric pressure acting on the surface of the liquid pushes the liquid up into the syringe. The dropper is a short glass tube with a rubber bulb at one end and a nozzle at 5 applications of atmospheric pressure other end.

When we press the rubber bulb of the dropper by keeping its nozzle dipped in the liquidair present 5 applications of atmospheric pressure the glass tube and bulb is seen to escape in the form of bubbles.

Due to this ,air pressure inside the glass tube and rubber bulb of dropper is very much reduced. When we now release the rubber bulb of dropper ,the much 5 applications of atmospheric pressure atmospheric pressure acting on the surface ,pushes the liquid up into the dropper tube.

If we remove the filled dropper from the container of liquid and press its rubber bulb slowly then the drops of liquid will come out of the nozzle of dropper tube, 5 applications of atmospheric pressure. A rubber sucker looks like a small, concave — shaped rubber cup.

A rubber sucker is also called a suction Cup because it sticks to a surface by suction. When we press the rubber sucker on a flat ,smooth, surfaceits concave rubber cup gets flattened to a large extent, pushing out most of the air from beneath it.

Since very little air remains inside the flattened rubber sucker ,therefore the air pressure inside the rubber sucker becomes very low. The much greater atmospheric pressure acting on the rubber sucker from outside fixes the rubber sucker firmly to a flat surface due to the atmospheric pressure. University and has many 5 applications of atmospheric pressure of experience in teaching, 5 applications of atmospheric pressure.

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5 applications of atmospheric pressure

 

Application of Atmospheric Pressure Rubber Sucker. -When the sucker is pressed into place, the air inside is forced out. Syringe. When the piston is pulled up, the atmospheric pressure inside the cylinder will decrease. Straw. -When a person suck through the straw, the pressure in the straw become. Application of Atmospheric pressure 1. A rubber tube can be used to siphon liquid from a container at a higher level to another 2. The tube is first filled with the liquid and one end is placed in the liquid in the container A. 3. The pressure in the rubber at the lower end is equal to Author: O'deen. Aug 07,  · 1) During the upstroke V1 closes and the pressure inside the barrel is reduced due to the increase in volume of the air inside it (Boyle's law) 2) The limitation of the lift pump is that it can to raise water up to a height of 10 m only since the atmospheric pressure cannot support a water column of height more than 10 m.