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BUNGEE DROP

Science Olympiad Summer Institute Phoenix, AZ July 15 - 19, 2013. BUNGEE DROP. DESCRIPTION. Drop a mass from a given height and get it as close to the ground without touching. EVENT PARAMETERS. Elastic Cord More than one material More than one strand Attached closed metal ring

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BUNGEE DROP

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  1. Science Olympiad Summer Institute Phoenix, AZ July 15 - 19, 2013 BUNGEE DROP

  2. DESCRIPTION Drop a mass from a given height and get it as close to the ground without touching

  3. EVENT PARAMETERS Elastic Cord • More than one material • More than one strand • Attached closed metal ring • ½ - 1 inch diameter • Will not open • Must meet elasticity test

  4. ELASTICITY TEST While suspended vertically • Bottom meter of the cord • Stretch to at least 1.25 meters with 500 gram mass attached • Return to original length (approximately)

  5. DROP MASS • 50 – 300 grams • Regional – 25 gram multiples • State – 10 gram multiples • National – 1 gram multiples

  6. DROP HEIGHT • Regional and State • 2 – 5 meters • Same or different heights • National • 5 – 10 meters • Different heights

  7. Measuring System • Multiple spotters • Digital video cameras • Touch or no touch • Carbon paper • Fine powder

  8. COMPETITION • Elastic cords impounded before posting of mass and height(s) • No physical alterations to elastic cord (except for marking drop locations) after impound

  9. COMPETITION DROPS • 2 drops • Same mass each time • Height • Regional – same or different • National - different

  10. TIME LIMITS • 5 minutes to prepare device in holding area • 5 minutes to complete both drops

  11. SCORING • Sum of distance between surface plane and lowest point of device • Teams with one touch will be ranked below teams with no touches • Teams that fail elasticity test will be ranked below passing teams

  12. TIE-BREAKER • 1ST – Single best overall drop • Closest to landing surface • Either drop • 2nd – Cord with greatest stretch in elasticity test

  13. APPEALS • No appeals after device has left impound area

  14. QUESTIONS • Draft Competition Manual • Others ?

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