PAPER AIRPLANES<\/p>\n\n\n\n
Aerodynamics is key to making a paper airplane fly. The \npaper must cut through the air to travel a great distance. If a plane is\n not folded correctly it will be like throwing a normal piece of paper. \nThat is why planes need to be aerodynamic. There are four forces \ninvolved in aerodynamics, lift, thrust, and drag.<\/p>\n\n\n\n
Lift keeps the plane airborne and is produced by the \nmovement of airfoil. (Airfoil is any surface that is designed to aid in \ncontrolling an aircraft by using air.) Three theories best describe \nLift, Newtons Third Law, the Coanda Effect, and Bernoulli\u2019s Principle. \nIn Newtons Third Law says \u201cthe mutual forces of action and reaction \nbetween two bodies are equal, opposite and collinear. The Coanda Effect \nis the tendency of a moving fluid (air) to attach itself to a surface \n(an airplane) and flow with it. The other the theory of lift is \nBernoulli\u2019s Principle. This principle states that \u201cas the speed of a \nmoving fluid increases, the pressure within the fluid decreases.<\/p>\n\n\n\n
. Thrust is the force that propels the plane forward. \nThe force starts when air is pushed in the direction opposite to the \nflight. and is explained in Newtons Second Law of Motion which states \nthat \u201cthe acceleration of a body is parallel and directly proportional \nto the net force. While thrust is created by a spinning propeller or a \njet engine on a normal plane, paper airplanes have neither. Instead they\n use the movement of your hand. The hand movement can only a certain \namount of time depending on how hard the plane is thrown This is the \nreason paper planes cannot fly as far and as long as regular airplanes.<\/p>\n\n\n\n
Gravity is probably the most know force involved in \naerodynamics. Gravity pulls the paper airplane down, the opposite of \nlift. In order for a plane to fly far it must have a light weight. ON a \nlarge plane there is a jet that keeps it up while on a paper airplane \nthere is nothing and it falls down after a period of time.<\/p>\n\n\n\n
The last force involved in aerodynamics is called Drag. \nAny force that resists any forward motion through a fluid (air) that may\n be caused during a flight is called drag. Drag is increased with area \nand resists any forward motion. Without a fluid there is no drag. Drag \nis a force and has magnitude and a direction. To get the paper airplane \nto go anywhere there needs to limited amount of drag drag.<\/p>\n\n\n\n
The purpose of this experiment is to learn more about \naerodynamics and flight. It is hypothesized that the more a paper \nairplane is wind resistant the farther it will fly. The objective of \nexperimenting on paper airplanes is to help improve modern flight and \nreduces crashes.<\/p>\n\n\n\n
Materials<\/p>\n\n\n\n
Procedures<\/p>\n\n\n\n
\nResults and Conclusion\n<\/p>\n\n\n\n
The effect of different types of paper on the distance \nflown is summarized in the table on the previous page. \u201cThe Floater\u201d had\n the best average of 11.963 meters. After that was the \u201cSpeed Demon\u201d \nthat lives up to its name with an average of 10.37 meters followed \nclosely by the \u201cClassic\u201d that got an average of 10.325 meters. The came \nthe \u201cEagle\u201d with 8.155 meters and in last was \u201cYe Old Faithful\u201d with \n5.862 meters. In this experiment there was a range of 6.101 which is \nlarger than expected. This data did support the hypotheses because when \nthe lightness and aerodynamic increased the distance the planes flew \nincreased.<\/p>\n\n\n\n
The purpose of this experiment was to determine the \neffect of different types of planes on the distance flown. The lighter \nand more aerodynamic paper planes flew farther than the ones that were \nless aerodynamic. The data supported the research shown on lift, drag, \nthrust, and gravity because the planes that flew the farthest controlled\n most of these forces. These findings agree with Newtons Three Laws of \nMotion, Bernoulli\u2019s Principle, and the Coanda Effect. The aerodynamic \nplanes could slice through the air while the other ones struggled to \npush through. Additional experiments could be conducted to determine how\n other planes in the book will fly. This experiment could be improved by\n flying the paper airplanes in a larger place and by using a machine to \nthrow the planes so that they are released at the exact same spot.<\/p>\n\n\n\n
Elert, Glenn. \u201cAerodynamic Drag.\u201d physics.info\/drag. (2009). Web. November 26, 2011<\/p>\n\n\n\n
Joho, Phil. Paper Airplanes: Step by Step Instructions<\/em>. Dingley, Victoria: Hinkler, 2001.<\/p>\n\n\n\n Print.<\/p>\n\n\n\n \u201cThe Basic Forces of Thrust, Drag and Lift.\u201d www.infoplease.com\/ceb\/sci\/AO856483.html<\/a>. (2007). Web. November 25, 2011<\/p>\n","protected":false},"excerpt":{"rendered":" PAPER AIRPLANES Aerodynamics is key to making a paper airplane fly. The paper must cut through the air to travel a great distance. If a plane is not folded correctly it will be like throwing a normal piece of paper. … Continue reading