Density and Buoyant Force
Performance Task no. 4.1
Pressure Principle
I. Introduction
Why is theater seat so much more comfortable than a bicycle seat? One of the main reasons any seat is comfortable is the pressure it exerts on your body. This performance task aims to know the importance and application of pressure.
Pressure is defined as the force acting perpendicular to a unit area. It is the result of a force distributed over an area. A theater seat’s large padded seat and back offer a larger area to support your weight than a bicycle seat does. Thus, the theater seat exerts less pressure on you and is more comfortable than the bicycle seat. Many other everyday situations also involve pressure and it is not only about the theater or bicycle seat but as well as in fluids. To calculate pressure, divide the force by the area over which the force acts. There are three principles of pressure:
Pascal’s Principle.
-It was discovered by Blaise Pascal, a French mathematician, scientist, and philosopher in the year 1650. It is states that: Pressure exerted on a contained fluid is transmitted undiminished throughout the fluid, acting in all directions and perpendicular to the walls of the container.
Bernoulli’s Principle.
-It was discovered by the Swiss scientist Daniel Bernoulli (1700-1782). According to it, for steady fluid flow, where the velocity of the fluid is high, its pressure is low, and where the velocity is low the pressure is high.
Archimedes’ Principle.
-It was discovered by Archimedes, an ancient Greek mathematician who died in 212 B.C. According to this principle, an object immersed in a fluid experiences a buoyant force that is equal in magnitude to the force of gravity on the displaced fluid. Archimedes was assigned by King Hero to find out if his crown was made of pure gold. For a time, he was puzzled. One day, however, while he was taking a bath, he discovered that he was lighter. He seemed to weigh less in the water. This provided a solution to his problem
Pressure Principle
I. Introduction
Why is theater seat so much more comfortable than a bicycle seat? One of the main reasons any seat is comfortable is the pressure it exerts on your body. This performance task aims to know the importance and application of pressure.
Pressure is defined as the force acting perpendicular to a unit area. It is the result of a force distributed over an area. A theater seat’s large padded seat and back offer a larger area to support your weight than a bicycle seat does. Thus, the theater seat exerts less pressure on you and is more comfortable than the bicycle seat. Many other everyday situations also involve pressure and it is not only about the theater or bicycle seat but as well as in fluids. To calculate pressure, divide the force by the area over which the force acts. There are three principles of pressure:
Pascal’s Principle.
-It was discovered by Blaise Pascal, a French mathematician, scientist, and philosopher in the year 1650. It is states that: Pressure exerted on a contained fluid is transmitted undiminished throughout the fluid, acting in all directions and perpendicular to the walls of the container.
Bernoulli’s Principle.
-It was discovered by the Swiss scientist Daniel Bernoulli (1700-1782). According to it, for steady fluid flow, where the velocity of the fluid is high, its pressure is low, and where the velocity is low the pressure is high.
Archimedes’ Principle.
-It was discovered by Archimedes, an ancient Greek mathematician who died in 212 B.C. According to this principle, an object immersed in a fluid experiences a buoyant force that is equal in magnitude to the force of gravity on the displaced fluid. Archimedes was assigned by King Hero to find out if his crown was made of pure gold. For a time, he was puzzled. One day, however, while he was taking a bath, he discovered that he was lighter. He seemed to weigh less in the water. This provided a solution to his problem