Wednesday, February 23, 2011

Designing a Seismograph Lab

GUIDING QUESTION: How does the movement of the pen/needle work vs. the needle not moving?

HYPOTHESIS: I think it will record the lines, but not properly and all zig zag?

PLAN TO DO A TEST: 
(materials) list the materials that you will use
(procedure) list the steps that you will do for the lab
PROCEDURE: find materials 
                 put materials all together 
                 cut cardboard
                 put paper into the box
                 tape ruler to the wall (tape so the pen can move) 
                 test
                 record
RECORD ANALYZE: look carefully what happens. when you are testing i,t write down what happens and record. When you are done collecting data you sometimes need to do some analyzing.

CONCLUSION: After testing the seismograph my hypothesis was right and wrong. It was right, but not always at zig-zag, our recording was what was the diffrence between when the pen is not moving and when it is moving, we concluded that it would be easier when it was stationary. It was easier to record an earthquake making our hypotesis corecctly done.  

FURTHER INQUIRY: I think it needed to be built a little steadier and better, but it still worked out for us. But it was kind of hard to tape the pen to the wall because we needed to get the exact measure of height. If we built it better, it wouldn't take some much time to do it.

1 comment:

  1. Sophia-It was nice to see you working with Emily during class. The seismograph that you both designed and tested was very good. You needed to make few modifications, but the end result was an excellent seismogram. It would have been very effective if you were able to upload the pictures to this post so we could see the design and seismogram. The data analysis was missing from the report. Revision would bring a higher grade because some sentences were unclear in the conclusion.

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