Activity 7

Activity 7 Predicting Distance Graphs from Velocity Graphs

1. Predict a distance(position)-time graph from a velocity-time graph. Carefully study the velocity graph below. Using a dotted line, sketch your prediction of the corresponding distance graph on the bottom set of axes. (Assume that you started at the 1-meter mark.)

2. Make the graphs. After each person has sketched a prediction do your group's best to duplicate the top (velocity-time) graph by walking. (Reset Data Collection time 10 sec before you start.)

When you have made a good duplicate of the velocity-time graph, draw your actual result over the existing velocity-time graph.

Use a solid line to draw the actual distance-time graph on the same axes with your prediction. (Do not erase your prediction.)

Questions

How can you tell from a velocity-time graph that the moving object has changed direction? (Q13)

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What is the velocity at the moment the direction changes? (Q14)

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Is it possible to actually move your body (or an object) to make the vertical lines on the velocity graph you were trying to match? Why or why not? (Q15)

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Is it possible to actually move your body (or an object) to make vertical lines on a distance-time graph? Why or why not? What would the velocity be for a vertical section of a distance-time graph? (Q16)

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How can you tell from a distance-time graph that your motion is steady (motion at a constant velocity)? (Q17

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How can you tell from a velocity-time graph that your motion is steady? (Q18)

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