Station #____ Filename:________________________________________________
This lab is going to investigate and collect data from rolling carts up and down inclined planes using combinations of these modes of linear acceleration:
Once you have rolled your cart in such a manner as to recreate one of these position-time graphs on your screen, sketch its accompanying velocity-time graph in the space provided and save your data by saying YES to save data when you press "G for go." Continue rolling your cart until all three shapes have been saved.
Next, go to each saved data sheet, rename the sheet for the trial it illustrates, and create new (xy) scatter plots of position-time and velocity-time. Try and zoom in on the sections that are applicable; that is, do not include extraneous data on your graphs.
When saving your file, remember to make sure that the cursor is clicked on a cell, not a graph. Otherwise you will get a saving error and will lose all of your data.
1. What is the generic shape (horizontal line, oblique line, parabola) during accelerated motion for a(n):
2. Describe the two (2) types of activity which resulted in your position-time graph
3. Describe the two (2) types of activity which resulted in your velocity-time graph being drawn
4. Describe the two (2) types of activity which resulted in your velocity-time graph
having a positive slope - - that is a>0.
5. Describe the two (2) types of activity which resulted in your velocity-time graph
having a negative slope - - that is a<0
6. These graphs represent a related "set." Show how you either obtained or verified the requested information from the diagram which accompanies each question. Neatly, prove your answers on or directly under the diagrams provided. Color-coded responses would be helpful.
7. On the s-t graph provided, sketch the following "story." A turtle starts from a state of rest 1 meter from the side of a busy road. After waiting for 5 seconds and watching for on-coming traffic, the turtle decides that it is safe to cross the 6 meter-wide road. He takes 3 seconds to accelerate as he moves up to the edge of the road. Keeping his final speed constant, the turtle rushes across the road in 9 seconds. As soon as he successfully reaches the other side of the road, he takes 2 more seconds to quickly slow to a stop 1 meter off the road in the deep, cool grass.
Catharine H. Colwell
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