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Forces

Forces. Glider Engineering Challenge. Starting from the end and backwards planning…. Start with the PE. activities. Forces. *. *. Conceptual development. Mystery Stations. Qualitative Students rotate around stations Observe Explain Guess at what they all have in common

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Forces

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  1. Forces Glider Engineering Challenge Starting from the end and backwards planning…

  2. Start with the PE

  3. activities Forces * * Conceptual development

  4. Mystery Stations • Qualitative • Students rotate around stations • Observe • Explain • Guess at what they all have in common • Newton’s 1st Law–Inertia

  5. Carts & Masses • Quantitative investigation • Design and execute an experiment to determine how the motion depends on applied force • Represent findings through a graph • Newton’s 2nd Law • Fnet = ma

  6. Force Meters • Introduce force due to gravity • Create home-made force meter • Fgrav = mg • Fspring = -kx

  7. Tug-of-War a. b. • Quantitative • Use force meters to investigate action-reaction • Newton’s 3rd Law • Fa,b = –Fb,a c. d.

  8. Force Stations • Qualitative  Quantitative • Students rotate around stations • “Draw the forces” • Free-Body Diagrams

  9. The Glider Engineering Challenge • Design and build a working glider • Conduct an experiment to optimize the design • Design Report I • Analysis & FBDs • Launch Competition • Design Report II • Analysis of Launch & Reflection

  10. The Glider Engineering Challenge • Build a working glider • Must slide freely in track • Must have notch at nose for string attachment • Conduct an experiment to optimize one aspect of the design • Launch Competition m = 5.70 kg

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