Jeff Regester Chris Bernhardt Physics Chemistry Jason Cheek Melinda Graham Mathematics Mathematics Tim Martin Earth Science Eric Shilling Mathematics Greensboro Day School Hooke’s Law Orbital Motion Reduced-Gravity Flight Experiment.
Download ReportTranscript Jeff Regester Chris Bernhardt Physics Chemistry Jason Cheek Melinda Graham Mathematics Mathematics Tim Martin Earth Science Eric Shilling Mathematics Greensboro Day School Hooke’s Law Orbital Motion Reduced-Gravity Flight Experiment.
Jeff Regester Chris Bernhardt Physics Chemistry Jason Cheek Melinda Graham Mathematics Mathematics Tim Martin Earth Science Eric Shilling Mathematics Greensboro Day School Hooke’s Law Orbital Motion Reduced-Gravity Flight Experiment What Happens When...? Isaac Newton’s First Law of Motion: an object at rest will stay at rest, and an object in motion will stay in motion in a straight line with a constant speed... INERTIA Centripetal Force So, if something moves in a circle, there must be a reason. centripetal = centrum + petere (N. Latin) = center + to seek What keeps each of these things orbiting? Planets around a star... Moons around a planet... Electrons around a nucleus... Tennis ball around hand... And what shapes are these orbits? In our experiment... Hooke’s Law F=k·x F = force x = stretch of the spring k = spring constant Hooke’s Law Orbits Two masses, connected by a spring, will be set spinning by a turntable apparatus. When released, the masses will (in general) oscillate inward and outward as they also orbit the system center of mass. http://www.youtube.com/watch?v=aK6sYih6vfI The apparatus under construction Ellington Field Fiona, our wonderful NASA mentor! Tours Final Preparations Test Readiness Review (TRR) Flight Day! FLIGHT 1 ACCELEROMETER DATA thirty 0-g parabolas... two Mars parabolas two Moon parabolas Parabola 8 0 1040 1050 1060 1070 1080 1090 -0.2 -0.4 apparent gravity (g's) -0.6 -0.8 -1 -1.2 -1.4 -1.6 -1.8 -2 time (sec) 1100 1110 1120 For more info... Go to the HLOM project website for... – photos and video – raw and analyzed data – numerical models – articles, papers and classroom activities as they are written http://academic.greensboroday.org/~regesterj /data/rgo-HLOM/ Who will get sick on the 0g flight? Results of a student poll prior to flight, as a histogram.