2. Graphing Motion Mrs. Wolfe  Distance-Time Graph  Speed-Time Graph

3. Problem: Each color represents a different car. Are their motions the same? Explain what you know.

4. Time for a Lab! Speed of the Bubble!

5. Distance-Time Graph slope = steeper slope = straight line = flat line = Distance-Time Graph A B faster speed constant speed no motion speed

6. Reading the Graph Who started out faster?  A (steeper slope) Who had a constant speed? AA Describe B from 10-20 min.  B stopped moving Find their average speeds.  A = (2400m) ÷ (30min) A = 80 m/min  B = (1200m) ÷ (30min) B = 40 m/min Distance-Time Graph A B

7. Acceleration is indicated by a curve on a Distance-Time graph. Changing slope = changing velocity

8. Speed-Time Graph slope = straight line = flat line = acceleration  +ve = speeds up  -ve = slows down constant accel. no accel. (constant velocity)

9. Reading the Graph Speed-Time Graph Specify the time period when the object was... slowing down  5 to 10 seconds speeding up  0 to 3 seconds moving at a constant speed  3 to 5 seconds not moving  0 & 10 seconds

10. Do you understand? Time for a WS!