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Physics Lab Write-up #4

# Physics Lab Write-up #4 - :Lawn June16,2009 Purpose...

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Measurement and Modeling: Lawn June 16, 2009 Purpose In this experiment, students will indirectly measure the length of an object, and use  percent difference in the comparison of two measurements. Hypothesis A string and a two-meter stick placed at opposite ends of a lawn can be used to indirectly  measure the length of a lawn using the law of triangles. Materials -meter stick -two-meter stick -string -tape measure Pre-Lab Questions 1) Factors that will influence the indirect measurement for the lawn’s length include  the height of the person and how he is holding the meter stick. The height of the  string is also another factor that will influence the measurement. 2) The uncertainty in partner B’s measurement is 4 cm +/- 1 cm. 3) The uncertainty in partner C’s measurement is 48 cm +/- 1 cm.

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