Using Gravitational Force as a Measurement Tool

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  • Topic: Soil, Sand, Organic matter
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  • Published : February 25, 2013
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Lab Report
Using Gravitational Force as a Measurement Tool

Answer the following questions about the results of this activity. Record your answers in the boxes.

Send your completed lab report to your instructor. Don’t forget to save your lab report to your computer!

Activity 1

Record your data from Activity 1 in the boxes below. Enter the data for the sample you used in each trial (5000 rpm, 10000 rpm, etc…) in the appropriate columns and the corresponding g-force, number of layers, and position of layers position results.

You will need to use the following formula to assist with your laboratory report: • G-force =0 00001118 x radius of centrifuge arm x (rpm)2 • The radius of the centrifuge arm for this instrument is 10 cm.

| | | | | | |Speed |5000 rpm |10000 rpm |15000 rpm |20000 rpm | | | | | | | |G-force | | | | | | |2 |4 |5 |3 | |Number of Layers | | | | | | | | | | | |Position of Layers | | | | | | | | | | | | | | | |Explain what happens to the G-force as the speed of the centrifuge increases. | | | | | | | | | | | | | | | | | | | | | |...
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