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					Position vs time graphs

    Of an object at rest
           Describe what the object is doing
               at 1 second, 2 seconds,
                   3 seconds, etc.?
           5m

           4m
position




                                 At 1 seconds the
           3m
                                 object is located 4
           2m                    meters from the origin

           1m


     0m
                          2s      3s    4s    5s
                0s   1s
                          time
 Describe what the object is doing at
  1 second, 2 seconds, 3 seconds
                etc.?
           5m

           4m
position




                                 At 2 seconds the
           3m
                                 object is located 4
           2m                    meters from the origin

           1m


     0m
                          2s      3s    4s    5s
                0s   1s
                          time
 Describe what the object is doing at
  1 second, 2 seconds, 3 seconds
                etc.?
           5m

           4m                              From 0 to 5
position




                                           seconds the
           3m                              object is
                                           located 4
           2m
                                           meters from
           1m                              the origin

     0m
                          2s     3s   4s   5s
                0s   1s
                          time
• If an object is staying in the same position
  for a time interval than its…

•    at rest.
•   stopped.
•   not moving.
•   still.

• Represented by a horizontal line on a
  position vs time graph
• Number your whiteboards from 1 to 3 and
  answer the question about the graphs
   1) When and where is the object
              at rest?
           10m

           8m
position




           6m

           4m

           2m


     0m
                           2s     3s   4s   5s
                 0s   1s
                           time
   2) When and where is the object
            not moving?
           5m

           4m
position




           3m

           2m

           1m


     0m
                          4s     6s   8s   10 s
                0s   2s
                          time
   3) When and where is the object
               still?
           +3 m

      +2 m
position




           +1 m

           0m

           -1 m


     -2 m
                            10 s   15 s   20 s   25 s
                  0s   5s
                            time
• *
   1) When and where is the object
              at rest?
      10 m


           8m                              From 2 to 4
position




                                           seconds the
           6m                              object is
                                           located 6
           4m
                                           meters from
           2m                              the origin

     0m
                          2s     3s   4s   5s
                0s   1s
                          time
   2) When and where is the object
            not moving?
                          From 0 to 4 seconds the object is not movi
           5m             at 4 meters away

           4m                                          From 8 to
position




                                                       10
           3m                                          seconds
                                                       the object
                                                       is not
           2m                                          moving at
                                                       3 meters
           1m                                          away



     0m
                          4s     6s      8s     10 s
                0s   2s
                          time
   3) When and where is the object
               still?
           +3 m

      +2 m                                        From 15 to
position




                                                  25 seconds
           +1 m                                   the object is
                                                  located -1
           0m
                                                  meters from
           -1 m                                   the origin

     -2 m
                            10 s   15 s   20 s   25 s
                  0s   5s
                            time
• *
• What would a position- vs- time graph
  look like of your desk as measured
  from the chalkboard -for the entire
  class period?



• How would your graph be similar,
  different from your classmates?

				
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