Research Paper
Have you wondered why airplanes were ever able to fly or how racecars are able to stay on the ground at high speeds? They all use a scientific concept called Bernoulli’s principle, or more commonly known as Bernoulli’s equation. His principle simply states that the faster a fluid flows, the less pressure it applies, the slower the fluid flows, the more pressure it applies.
How did Daniel Bernoulli figure out that faster fluids (when i say fluids,I mean liquids and gases) give off lower pressure and slower fluids give out higher pressure? He was looking at how water flows through pipes of different diameters. He noticed that as the water was flowing through a fairly large pipe it was flowing fairly slow, but as it entered a more narrow pipe, its speed was increased.
Bernoulli figured that there had to be something forcing the water to flow faster. He figured that the water did not change its volume when going through two different pipes, so in order to keep the same amount of volume, the water must flow faster. He applied Robert Boyle’s law to his findings. Boyle’s law states that pressure and volume are inversely related. It can also be stated as when pressure goes up, volume goes down, and vice versa. Since the volume stayed the same when flowing into a narrower pipe, the pressure had to be decreased when going into the narrower pipe.
The conclusion of Bernoulli’s experiment? The water flowing through the narrower pipe was faster than the water flowing through the wider pipe. Also, the pressure in the narrow pipe was less than the pressure in the wider pipe. Therefore, when the water was flowing through the wider pipe, its pressure was higher, and when the water flowed through the narrower pipe, its press...
... middle of paper ...
...c. 2013.
“Daniel Bernoulli.” Wikipedia: the Free Encyclopedia. Wikipedia Foundation, Inc. 25 Dec. 2013. Web. 1 Jan. 2014. (http://en.wikipedia.org/wiki/Daniel_Bernoulli)
Kuhn, Karl F. Basic Physics. New York: J. Wiley, 1996. Print.
Netting, Ruth. "Atmospheric Pressure: The Force Exerted by the Weight of the Air." Kids.earth.nasa.gov. SAIC Information Services and Sample, 22 Jan. 2003. Web. 18 Dec. 2013.
Ross, Danice, Re-Ann Sabubu, and Era Manitas. "Applications - Bernoulli's Principle." Bernoulli's Principle. N.p., n.d. Web. 26 Jan. 2014.
Spahn, Justin, Cynthia Whyte, and Northrop Grumman. "A Change in the Winds: Studying Bernoulli's Principle." A Change in the Winds: Studying Bernoulli's Principle. Science Buddies, 4 Sept. 2013. Web. 19 Dec. 2013.
Gale, Thomson. "BERNOULLI'S PRINCIPLE." Bernoulli's Principle. Thomson Corporation, 2008. Web. 26 Jan. 2014.
To measure velocity we had to get an orange and let it flow down a
In addition, the data points were quite far apart. Having more intermediate data points would have enabled the scientists to more accurately model the continuous nature of the data with a discontinuous series of points. Finally, stopping the flask more quickly would have allowed less gas to escape. Using a mechanical solution that could stop nearly instantly would have been ideal.
A change in the pressure of a system will only have an effect if the system is made up of gases. If the pressure of a system of gases were to increase, there will be a...
Skeptical Science. (n.d.). Explaining how the water vapor greenhouse effect works. Retrieved on March 20, 2014 from http://www.skepticalscience.com/water-vapor-greenhouse-gas.htm
Therefore, the relationship between pressure drop and boil-up rate means that more volume of vapour educed per unit time results in more restriction of the holes in the sieve tray and that caused by passing of vapour through the liquid on top of the tray. Hence, the higher the velocity, the higher the boil-up rate and so does the overall pressure drop.
To investigate the relationship between the air pressure in a ball and the bounce height of that ball where the drop height (gravitational potential energy), temperature and location are kept constant.
The Bernoulli’s equation was mainly derived for ideal fluids i.e zero viscous fluids hence they are frictionless. But all the fluids are real and has some viscosity and hence offer resistance to flow. When the fluid is flowing there will always be some losses across the sections and Bernoulli’s equation considers all the losses.
All flight is the result of forces acting upon the wings of an airplane that allow it to counteract gravity. Contrary to popular belief, the Bernoulli principle is not responsible for most of the lift generated by an airplanes wings. Rather, the lift is created by air being deflected off the wings and transferring an upward force to those wings.
Flight is composed of four basic ideas thrust, drag, weight, and lift. Drag resists forward motion and thrust fights to overcome it. Weight pulls an object down to Earth and lift tries to keep it in the air. Those four basic ideas govern all aspects of flight. And yet, man had not mastered flight until the 1900s, while nature had been working with flight for millions and millions of years.
Quantitative measurements on gases were first made in a rational manner by the English chemist Robert Boyle (1627 - 1691). The instruments used by Boyle to measure pressure were two: the manometer, which measures differences in pressure, and the barometer, which measures the total pressure of the atmosphere.
Fick’s Law is used to measure the rate of diffusion. Diffusion is the movement of molecules from a region of high concentration to low concentration (Smith, 2012). Diffusion is highly important to almost every living organism. With the aid of diffusion various substances are able to passively move through an organism (Anderson et al., 2012). This process of transporting materials throughout the body can occur without the organism having to expend much energy (Anderson et al., 2012). An example of diffusion would be when a human consumes a glass of water; it will be diffused into the blood stream quite rapidly without our bodies putting in any extra effort.
Smil, Vaclav. "The Long Slow Rise Of Solar And Wind." Scientific American 310.1 (2014): 52-57. Academic Search Complete. Web. 16 May 2014.
King Hiero had commissioned a new royal crown for which he provided solid gold to the goldsmith. When the crown arrived, King Hiero was suspicious that the goldsmith only used some of the gold, kept the rest for himself and added silver to make the crown the correct weight. Archimedes was asked to determine whether or not the crown was pure gold without harming it in the process. Archimedes was perplexed but found inspiration while taking a bath. He noticed that the full bath overflowed when he lowered himself into it, and suddenly realized that he could measure the crown's volume by the amount of water it displaced. He knew that since he could measure the crown's volume, all he had to do was discover its weight in order to calculate its density and hence its
In the early 17th century, people were unsure about how the body system worked, especially when it came to blood. It wasn’t until the mid-1600’s that William Harvey discovered how the blood circulates throughout the body. Harvey was an English Physician whose discoveries greatly impacted medical science. This discovery completely changed the field of medicine. He first “observed the action of the heart in small animals and fishes” (Weisstein). When observing these small animals he concluded on how the blood circulates the bodies. He made many discoveries in which he announced the way the body works and how it uses blood. “He developed the first complete theory of the circulation of blood, believing that it was pushed throughout the body by the heart’s contractions” (Weisstein). There were still many gaps in the process of how the blood circulates, but...
There is also the potential of human error within this experiment for example finding the meniscus is important to get an accurate amount using the graduated pipettes and burettes. There is a possibility that at one point in the experiment a chemical was measured inaccurately affecting the results. To resolve this, the experiment should have been repeated three times.