Distance-Time Graphs EQ: What can you learn from a distance-time graph?

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Presentation transcript:

Distance-Time Graphs EQ: What can you learn from a distance-time graph?

How can we graph motion?  Distance-time graphs are one common type of motion graph.  A straight line on the graph indicates constant speed.

What else can we do with distance-time graphs?  Distance-time graphs can be used to compare the motion of 2 objects.  A steeper the line, with a greater slope, means faster speed.

How can we calculate speed from a distance-time graph?

Can distance-time graphs show changes in speed?  i. Constant speed, beginning at a distance  ii. Stopped = horizontal line  iii. Speeding up = slope increases  iv. Constant speed

Interpret each line on this graph

Matching a Graph to a Story P-7 A. Tom took his dog for a walk to the park. He set off slowly and then increased his pace. At the park Tom turned around and walked slowly back home. C. Tom went for a jog. At the end of his road he bumped into a friend and his pace slowed. When Tom left his friend he walked quickly back home. B. Tom rode his bike east from his home up a steep hill. After a while the slope eased off. At the top he raced down the other side. Time Distance