Kinematics - PowerPoint PPT Presentation

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Kinematics

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  1. Kinematics Diagrams

  2. Our topics today: • Describing Motion with Diagrams • Stroboscopic Images • Vector Diagrams • x-t, v-t, a-t graphs • Motion in constant acceleration • 1D Kinematic Equations • That’s it, folks!

  3. Stroboscopic Images time 1 sec 2 sec 3 sec position 1 cm 5 cm 11 cm

  4. Stroboscopic Images

  5. Stroboscopic Images

  6. Stroboscopic Images

  7. Stroboscopic Images

  8. Stroboscopic images • Try daw ang interactive physics. ;)

  9. Vector Diagrams Using Displacement Vectors

  10. Displacement-time (x-t) graphs

  11. Displacement-time (x-t) graphs

  12. Displacement-time (x-t) graphs

  13. Displacement-time (x-t) graphs

  14. Displacement-time (x-t) graphs • Which is which? • Positive and changing velocity (acceleration) • Positive and constant velocity A B Get 1/4

  15. Displacement-time (x-t) graphs Which is which? 3. Slow, leftward (-), Constant Velocity 4. Fast, leftward (-), Constant velocity 5. Slow, rightward (+), constant velocity 6. Fast, rightward (+), constant velocity A B C D

  16. Displacement-time (x-t) graphs Which is which? 7. Negative velocity (-), slow to fast 8. Leftward velocity (-), fast to slow A B

  17. Velocity-time (v-t) graphs Constant Velocity Changing Velocity, Constant Acceleration

  18. Velocity-time (v-t) graphs

  19. Velocity-time (v-t) graphs

  20. Velocity-time (v-t) graphs The area bounded by the “curve” and the x-axis determines the displacement, or how far the ball travels.

  21. Motion in Constant Acceleration • That’s something for the black board.  • Reminder: Quiz Next Meeting • Vectors • Vector properties • Resolving vectors into x- and y- components • Numerical addition of vectors • Et cetera