Warm-up A space shuttle takes off from FL and circles the Earth several times, finally landing in CA. While the shuttle is in flight, a photographer flies from FL to CA to take pictures of the astronauts when they step off the shuttle.  Who undergoes the greater displacement? What is the difference between displacements?
1-7 :Displacement and Velocity II Describe  motion in terms of displacement, time, and velocity. Calculate  the displacement of an object traveling at a known velocity for a specific time interval. Construct  and interpret graphs of position versus time.
use the slope to interpret the relationship between the variables (d & t) d vs. t graphs faster the speed  slower the speed  *steeper the slope   *more gentle the slope  
When interpreting the motion answer: As time goes by, distance  ( d   ,    or no change ) The line shows  relationship ( constant or changing ) Moving forward  (d  ) Constant speed  (straight) Moving backward  (d  ) Constant speed  (straight) Constant speed  (straight) No motion  (d stays same) 0 m/s Moving forward  (d  ) Changing  speed  (curved) t d d t d t d t
Velocity The measure of how fast something moves from one point to another Average velocity Total displacement divided by the time interval during which the displacement occurred.
During a race on level ground, Andra covers 825 m in 137 s while running due west. Find Andra’s average velocity.
Velocity Velocity is not the same as speed. Most people use them interchangeably. Physics has different meanings. Velocity has magnitude and direction. Depends on total displacement Speed has only magnitude. Depends on the distance traveled.

1-7 Displacement & Velocity

  • 1.
    Warm-up A spaceshuttle takes off from FL and circles the Earth several times, finally landing in CA. While the shuttle is in flight, a photographer flies from FL to CA to take pictures of the astronauts when they step off the shuttle. Who undergoes the greater displacement? What is the difference between displacements?
  • 2.
    1-7 :Displacement andVelocity II Describe motion in terms of displacement, time, and velocity. Calculate the displacement of an object traveling at a known velocity for a specific time interval. Construct and interpret graphs of position versus time.
  • 3.
    use the slopeto interpret the relationship between the variables (d & t) d vs. t graphs faster the speed slower the speed *steeper the slope  *more gentle the slope 
  • 4.
    When interpreting themotion answer: As time goes by, distance ( d  ,  or no change ) The line shows relationship ( constant or changing ) Moving forward (d  ) Constant speed (straight) Moving backward (d  ) Constant speed (straight) Constant speed (straight) No motion (d stays same) 0 m/s Moving forward (d  ) Changing speed (curved) t d d t d t d t
  • 5.
    Velocity The measureof how fast something moves from one point to another Average velocity Total displacement divided by the time interval during which the displacement occurred.
  • 6.
    During a raceon level ground, Andra covers 825 m in 137 s while running due west. Find Andra’s average velocity.
  • 7.
    Velocity Velocity isnot the same as speed. Most people use them interchangeably. Physics has different meanings. Velocity has magnitude and direction. Depends on total displacement Speed has only magnitude. Depends on the distance traveled.

Editor's Notes

  • #2 Neither; the displacements are the same. The difference between these two displacements is in their direction-one positive and the other is negative.