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Frame of reference

Frame of reference. space and time. Position. An object’s location ( x ). Motion. The act of changing position (even if it wasn’t observed). Displacement. Change of position. There are two ways to think about motion. A. How large was the change of position?.

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Frame of reference

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  1. Frame of reference space and time

  2. Position An object’s location (x)

  3. Motion The act of changing position (even if it wasn’t observed)

  4. Displacement Change of position

  5. There are two ways to think about motion

  6. A. How large was the change of position?

  7. B. How large and in what direction was the change of position?

  8. Distance The magnitude of the change of position

  9. Absolute value Place the factor between vertical lines.

  10. Absolute value l - 400 cm l = 400 cm

  11. Initial position (xi)

  12. Final Position (xf)

  13. Change of position ∆ (delta)

  14. Change of position or displacement l∆ x l

  15. The equation for displacement ∆ x = xf -xi

  16. The equation for distance reads: d = l∆ xl = lxf -xil

  17. For our purpose, distance will always be: d = xf -xi

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