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Archimede's Principle

Archimede's Principle. Bethany Davis, Mackenzie Banks, Erik Gustafson, Jessica Port. Definitions of Important Words. Buoyancy: the power to float or rise in a fluid; relative lightness Relative Density: the weight per unit of volume of an object Fluid: any liquid or gas. Eureka!.

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Archimede's Principle

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  1. Archimede's Principle Bethany Davis, Mackenzie Banks, Erik Gustafson, Jessica Port

  2. Definitions of Important Words • Buoyancy: the power to float or rise in a fluid; relative lightness • Relative Density: the weight per unit of volume of an object • Fluid: any liquid or gas

  3. Eureka! • Archimedes, a Greek mathematician, supposedly discovered this law while climbing into his bathtub, and water was displaced • According to his principle: • Displaced fluid = volume of object • Weight of displaced fluid = upward force on the object • If an object’s relative density < relative density of the fluid, it will float • If an object’s relative density > relative density of the fluid, it will sink • B = pVg • Buoyancy (force) = density of liquid * volume * acceleration of gravity • This can be simplified as buoyancy = weight

  4. Works Cited • http://www.infoplease.com/ce6/sci/A0804583.html

  5. Bernoulli’s Principle -Group Two Adam, Rohan, Alyssa, and Ronnie

  6. What is Bernoulli’s Principle? • Bernoulli’s Principle states that as the velocity of a fluid increases, the pressure exerted by that fluid decreases

  7. Real-world applications of Bernoulli’s principle • Bernoulli’s principle plays an important role in the takeoff and flight of airplanes. • This is because when the air (which is a fluid) goes under the wing, it travels faster than the air above the wing and therefore a thrust is created by the decrease in pressure due to Bernoulli’s principle. • A good example of this is the airfoil. This is the type of wing used for commercial planes. It came from a study of Bernoulli’s principle • It also helps to keep the back wheels of racecars down when they travel at high speeds.

  8. Visual

  9. Works Cited • "Bernoulli's Principle." Wikipedia. Wikimedia Foundation. 25 Mar. 2009 <en.wikipedia.org/wiki/Bernoulli's_principle>. • "Bernoulli's Principle." Thinkquest.com. 25 Mar. 2009 <http://library.thinkquest.org/27948/bernoulli.html>. • Martin, Richard A. "Bernoulli's principle." World Book Advanced. 2009. [Place of access.] 25 March 2009 <http://www.worldbookonline.com/advanced/article?id=ar056940>. • X-zyLo. "Aerodynamic and Gyroscopic Principles." Hi Fly Kites. X-zyLo. 24 Mar. 2009 <http://www.hiflykites.co.za/kite-online-shop/fun-flying-toys-x-zylo-flying.htm>.

  10. Pascal's Law By: Tanya Akl, Zach Ginis, Alye Miller, and Tony Zhu This is Blaise Pascal

  11. Pascal’s Law • If pressure is applied to confined fluids, the fluid will send out the same pressure at the same rate. • P=F/A • Examples • HydraulicPress • Squeezing a Toothpaste Tube Used for the force of the driver’s foot in the breaks of most automobiles

  12. History • Born on June 19, 1623 in Clermont, France. • Died August19, 1662 • He was a mathematician and a philosopher. • Contributed to the study of fluids

  13. pv =k Boyle’s Law By Thomas Yi, Katie Uhl, Lindsey Jackson, Aditya Nair, and Raghav Sharma

  14. What is Boyle’s Law? Boyle’s Law (also known as the Boyle’s Mariotte Law) is a gas law in the case of the “Ideal Gas Law”. Named after Robert Boyle, Boyle’s Law describes the inverse relationship between the absolute pressure and volume of a gas.

  15. History of Boyle’s Law • Robert Boyle (1627-1691) was a natural philosopher from Ireland. The relationship between pressure and volume was discovered by two of Boyle’s friends, and Boyle performed experiments to confirm this. Also credited for first saying “Why so serious?” when Galileo was being persecuted by the Church. • Edme Mariotte, a French physicist, also discovered this relationship independently from Boyle. Therefore, the law is sometimes referred to as Boyle-Mariotte or Mariotte’s law.

  16. Xamples • Air-mattresses • Boyle’s law leads to Charles’ law • Air Bubbles get bigger as they increase in “altitude” in the water

  17. How Boyle’s Law Works At a constant temperature, the pressure and volume of gas is inversely proportional.

  18. Works Cited http://en.wikipedia.org/wiki/Boyle's_law

  19. Special Thanks to: • Achmed the Dead Terrorist “stop touching me” • Our Noodlyness, The one and only Flying Spaghetti Monster • Charles Darwin, for giving us the theory that explains how we got here • Uncyclopedia • King Leonidas. • The Joker (from The Dark Knight)

  20. Charles's Law Founder Jacques Charles

  21. Facts 1. At a constant pressure, the volume of a gas changes by the same factor as its temperature. 2. Charles studied the compressional ability of gases nearly a century after Boyle. 3. If the temperature of a gas in a closed container is raised, the speed of the molecules within the gas increases. 4. The molecules strike the sides of the container more often per second and with more force because they are moving faster.

  22. volume of gas temperature of gas constant

  23. Works Cited • Wikipedia • NASA.gov • www.library.thinkquest.org • www.iun.edu (Indiana University)

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