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Understanding Linear Kinematics Through Free Fall Demonstrations

Explore the concepts of free fall, terminal velocity, and gravity through demos with feathers, ping pong balls, and steel marbles in a vertical wind tunnel. Learn about objects in free fall and the transition to terminal velocity, including forces and types of objects. Discover zero gravity scenarios and watch footage of experiments like water balloons in zero G and the Symphony of Spheres in microgravity. Engage with educational content from NASA and see how physics impacts everyday objects in motion.

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Understanding Linear Kinematics Through Free Fall Demonstrations

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  1. Linear Kinematics - Free Fall • Contents: • Graph • Definition of and Terminal velocity

  2. Time A B C 0 m/s Velocity A - Free Fall - only gravity acts (a = -9.8 m/s/s) B - Transition from free fall to terminal velocity (a goes to zero) C - Terminal velocity (a = 0) (forces, vertical wind tunnels, type of object) (Demo - feather in vacuum, ping pong ball in vacuum, race twixt steel ball and pp ball)

  3. Time A B C 0 m/s Velocity Objects in free fall (region A) experience a zero g situation Demo - water bottle

  4. Demos: • Feather, Ping pong ball, Steel marble • vertical wind tunnel • terminal velocity • definition of Free Fall • Zero Gravity • gravity detector • Drop • Fling • DC-9 • filming Apollo 13 • YouTube(NASA Water Balloons in Zero G (High Quality)) • YouTube(Symphony of Spheres in Microgravity) • Show our experiments (DIME 2006)

  5. PSU: http://ddt.pdx.edu/node/605

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