Skip to main content

Pressure

Pressure

  • It is the normal force acting on a per unit area of the surface.
  • The S.I. unit of force is Pascal or N/m^2.
  • It is denoted by'p'.




Pressure = Thrust/Area
and by this formula, we can get the following formulae:

  1. Thrust = Pressure*Area
  2. Area = Thrust/Pressure

Do You Know


There are many units of pressure, some of them are as follows:

  1. 1 N/m^2 = 1 Pascal
  2. 1 bar =10^5 Pascal
  3. 1 atm =1.013*10^5 Pascal
  4. 1 torr = 133.33 Pascal


Factors Affecting Pressure

  • Pressure is directly proportional to the normal force acting. On increasing the force, the pressure increases.
  • Pressure is inversely Proportional to the surface area. On increasing,the surface area, the pressure decreases.

Applications

  1. Broad handles are provided in suitcase and bags.
  2. Cutting edges of knife are sharp.
  3. Camel is known as the ship of the desert
  4. Nails and pins have pointed ends.


Do You Know

  • Fluids also exert pressure.
  • The gasses exert pressure on the walls of the containers.
  • The pressure in the liquid increases with depth. 
















Enjoy your high school with - High School Pedia : www.highschoolpedia.com


Labels:

Comments

Post a Comment

Popular Posts

Anode Ray Experiment

→Anode ray experiment was conducted by E Goldstein. →These rays are also known as canal rays. →This experiment helped in the discovery of the proton. Apparatus Used A discharge tube  was taken in which there were 2 electrodes i.e. Anode(+ve) and the cathode (-ve). The tube was filled with an inert gas. A perforated or porous cathode was used. A layer of zinc sulphide was placed at the back of the cathode. There was a vacuum pump in the tube. High voltage (5000v-10000v) was allowed to flow through the system. It was observed that when the gas was at 1atm(atmospheric pressure ) no change was seen in the tube.  When the   pressure   was decreased inside the tube, a glow could be seen at the back side of the cathode.
2 comments
Read more

High School Pedia

It is an initiative by some students to spread the light of knowledge to everyone and everywhere. It was started in the year 2015 and has grown rapidly in the past few months. By the means of this website, we try to provide information on every topic that we can reach up to. You can find different articles on this website. All these articles are written in simple language so that everyone can understand it and learn from it. We at High School Pedia believe in creative learning and this is the reason why we add our own edited graphical representations in every article. Once a very learned man said, “Knowledge increases by not keeping it to yourself but by sharing it with others”. And we follow the same motto “Share to Learn”. The team of High School Pedia tries its best to provide you with the best and original content. Unlike many other websites, High School Pedia is famous for its original and inspiring content.
2 comments
Read more

Animal and Plant Cells

 Cells Cells are the basic functional, biological and structural unit of life. The word cell is a Latin word meaning ‘small room’. Cells are also known as building blocks of life.  The branch of science that deals with the form, structure, and composition of a cell is known as Cytology. All organisms around us are made up of cells. Bacteria, ameba, paramecium, algae, fungi, plants and animals are made up of cells.  Cells together form tissues. And tissue together makes an organ. History Of Cell The cell was discovered by Robert Hooke in 1665. He assembled a simple microscope and observed a very thin slice of cork under his primitive microscope. The cork was obtained from the outer covering of a tree called bark. Robert Hooke observed many little-partitioned boxes or compartments in the cork slice. These boxes appeared like a honey-comb. He termed these boxes as the cell. He also noticed that one box was separated from another by a wa...
23 comments
Read more

Important Mathematical Constants!

Important Mathematical Constants Mathematical constants are those numbers that are special and interesting because they come up in the various fields of mathematics like geometry, calculus etc. These mathematical constants are usually named after the person who discovered it and they are represented by a symbol that is usually picked up from the Greek alphabet. Mathematical constants are by definition very important. In this article we will take a look at certain mathematical constants that are more commonplace than others. 1.       π (pi) or Archimedes constant (~3.14159):   π is defined as the ratio of the circumference of a circle to its diameter. This is probably the most popular mathematical constant. So π is the circumference of the circle whose diameter is 1 unit. You might have seen it popping up when calculating the area of a circle (πr 2 ) or the circumference of a circle (2πr). It has many uses throughout mathematics from calcula...
4 comments
Read more

Classification and Evolution

Classification The system of grouping animals on the basis of their similarities and differences is called classification.The branch of biology which deals with classification is known as Taxonomy(though its deals with nomenclature and identification of organisms too). Purpose of classification  It makes the study of a wide variety of organisms easier. It helps in understanding the evolution organisms. It provides information about the origin and genetic relationship of the being. It supplies a vital information needed by all the branches of Biology. By studying a particular animal or plant or group, classification gives the general information about all the organisms of the group. Classification on the basic level is of 2 types: Artificial classification. Natural classification. Artificial Classification It was introduced by the early Greeks(Aristotle, Theophrastus) in the medieval times. In this animals are classified on the basis of their habitat. ...
Post a Comment
Read more

Pokemon Go 0.33.0

All Pokemon go fans get ready because again the latest version of Pokemon go is out. The Niantic has released a new version of Pokemon go i.e. 0.33.0.The size of the new version is 61.48MB.
8 comments
Read more

India's Venture Into Space

India’s Venture Into Space When NASA’s Neil Armstrong and Buzz Aldrin achieved a remarkable feat by becoming the first ones to land  on moon, India didn’t even have a space organisation. Well, little did anyone know that one day, ISRO, a then budding organisation would break Russia’s record by launching 104 satellites in one go. Indian Space Research Organisation (ISRO) has not only grown as an organisation, but has also played a vital role in the nation’s development. From India’s first man made satellite Aryabhatta to the Mars Orbiter Mission, we have definitely come a long way in these 50 years. And now ISRO’s announcement of launching Aditya mission as the first Solar Coronagraph to study the Coronal Mass Ejection (CME) does not come as a surprise. Another feature that makes the organisation stand apart is the cost effectiveness. Yes, even the Sandra Bullock starrer Gravity costed more than our very own Mangalyaan. While ISRO has definitely set a bar for the rest of the co...
Post a Comment
Read more