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Energy Transformation

This article explores the intricate energy transformations within boat engines, focusing on kinetic energy and various types of movement: rectilinear, vibrational, and rotational. It explains how an internal combustion engine operates using an air-fuel mixture, a battery, and a spark plug to ignite the engine, leading to power generation. The mechanical workings, including the movement of pistons, crankshafts, and propellers, will be discussed, highlighting the continuous cycle of energy conversion into movement and heat. Discover the physics that powers marine engines!

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Energy Transformation

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  1. Adam S. Jess S. Caitlin R. Energy Transformation

  2. Kinetic Energy • RECTALINEAR: (x,y,z) movement • VIBRATIONAL: back and forth • ROTATIONAL: spinning (no velocity) • ELECTRICAL: electric current • EM RADIATION: visible/invisible waves (light, micro, gamma, ect.) • HEAT: any particle movement (no energy can be used without some turning to heat)

  3. How Boat Engine Works • Pull start cord • Air + fuel injected into piston chamber • Piston compresses gas/air mixture • Battery send energy to spark plug • Spark plug ignites gas/air • Moves piston down which turns shaft and moves next piston up compressing next gas/air • Happens over and over again • Shaft turns which turns propeller

  4. Rectilinear • Pull start cord • Boat moves

  5. Electrical • Battery sends electricity to spark plug ignites fuel

  6. EM Radiation • Electric current creates electromagnetic field • Form of EM Radiation

  7. Vibration • Piston moves up and down • Hole motor vibrates

  8. Rotational • When pistons travel up/down turns crank shaft which turns drive shaft which turns propeller • Another shaft turns alternator which charges battery

  9. Heat • All these energy transformations create heat • Explosion • friction • Particle movement

  10. VIDEO http://www.youtube.com/watch?v=60QX5RY_ohQ&feature=related

  11. Citations • http://en.wikipedia.org/wiki/Internal_combustion_engine • http://www.partdiagrams.com/2010/03/bmw-b130-marine-engines-stern-drive-parts-diagram/ • http://www.aowingins.com/Website/Marine.html • http://www.rctech.net/forum/onroad-nitro-engine-zone/59523-sts-28-pull-start-engine-18.html • http://janetairong.en.busytrade.com/products/info/100061/spark-plug-moto-battery.html • http://blogs.basspro.com/blog/outdoorsite-library/boat-battery-buying-guide • http://www.ndt-ed.org/EducationResources/CommunityCollege/MagParticle/Physics/CoilField.htm • http://hawaii.hawaii.edu/math/Courses/Math100/Chapter2/Notes/Exercises/Demo233.htm • http://www.pt-boat.com/propeller/propeller.html • http://www.microficher.com/1996-yamaha-exciter-ext1100u-boat-crankshaft-piston-exploded-diagram • http://www.alistaircraven.com/java/basic/basic.htm • http://www.youtube.com/watch?v=60QX5RY_ohQ&feature=related • WELCH!!!

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