1. Science Starter! Complete the FRONT PAGE (#s 1 – 9) of the worksheet “Motion Graphs” (on teacher’s desk).

2. 1.Describe the motion depicted in this particle model. 2.Create a data chart and graph the motion shown. Time (s) Distance (m) 00 12.5 27.5 317.5 432.5 555

3. Acceleration Definition: The rate at which the velocity of an object changes (vector) Symbol: a Unit: m/s 2 Reminder: velocity includes SPEED and DIRECTION

4. Tangent Lines : Instantaneous Velocity Tangent Lines become steeper: speed is INCREASING Position moves away from zero: traveling in a POSITIVE direction

5. Velocity vs. Time Graphs Qualitatively describe the motion of the object for each interval: a)0s – 4 s b)4s – 8s c)8s – 12s

6. Acceleration

8. Enclosed Area Shade in shape and find area to find displacement. Rectangle = bh Triangle = ½ bh Displacement includes direction (+ or -); distance is a scalar total!