1. Motion Graphs Let’s go over the basics.

2. Acceleration vs. time graphs (a vs. t) These graphs are boring, and will only have a straight line above the axis, below the axis, or at 0. But what does the straight line mean? –Acceleration is always constant. What is the acceleration in this graph? –-2m/s 2 What does that mean? –Object is accelerating to the left.

3. Acceleration vs. time graphs (a vs. t) These graphs are boring, but they can be stair steps. But what does the stair steps mean? –Acceleration is changing instantaneously. What is the acceleration in this graph at 1 sec? –2m/s 2 What is the acceleration at 5s? –-2 m/s 2.

4. Acceleration vs. time graphs (a vs. t) The total area under the line tells you the change in velcocity for the object in motion. What is the change in velocity of the object from t=1s to t=5s? 0 m

5. Acceleration effects displacement vs time The acceleration effects shape of your displacement vs time. A positive acceleration create a Concave up displacement graph, and a Positive Slope Velocity graphs. –Which displacement graph depends on the starting and ending velocity.

6. Acceleration effects displacement vs time And what about negative accelerations. A negative acceleration create a Concave down displacement graph, and a Negative Slope Velocity graphs. –Which displacement graph depends on the starting and ending velocity.