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Do You Have A Potential Rocket Scientist In Your Class? Michael West
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How Do Rockets Work? For every action there is an equal and opposite reaction
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What About Rockets In Space? In a vacuum what do they push against?
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The Forces Acting On A Rocket Thrust - From ejecting propellant Weight - Mass of propellant & rocket Lift - Generated by fins & rocket body Drag - Friction from air moving over rocket
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The Water Rocket Challenge Key Questions Do I have to use water? Is pressurised air good enough? Is more water better? How can I modify the rocket to increase the duration of flight? What effect does the wind have? What launch angle is best for maximum distance?
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The Water Rocket Challenge Three Award Categories 1.Greatest Altitude Reached 2.Greatest Range Reached 3.Best Rocket Design
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The Water Rocket Challenge Materials 1x Soft Drink Bottle Cardboard Sticky Tape Scissors
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The Water Rocket Challenge Determining Altitude: Littlewood’s Law h max = g/8 * (t total ) 2
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The Water Rocket Challenge Effect of Drag:
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Some Shameless Promotion MSA/NASA Spaceward Bound Real Fieldwork Expeditions for Teachers July School Holidays 2009 www.marssociety.org.au AIAA Educator Associate Membership Access To AIAA’s Extensive Resources US$200 Classroom Grants Participate In Local AIAA Section Activities It is FREE!www.aiaa.org
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