Gravitational Virtual Lab Purpose: To discover a relationship between the masses of two objects, the distance between them and the gravitational force between them. Procedure: Click on http://phet.colorado.edu/simulations/sims.php?sim=Gravity_Force_Lab Select Run Now! Create a table of values to record the data. Select one variable (mass 1, mass 2 or distance) and record how the gravitational force varies as that variable is changed. Make sure to record the constant values for the other variables. Run at least 8 trials. To show the trend of how the gravitational force changes with respect to the variable, plot a graph. Using a log graph, find the relationship between the two variables. Plot a straighten curve and analyze its slope (including units and a comparison to the constants in the lab). Repeat for all three variables. Copy all data tables (neatly labeled) and all graphs (appropriately titled and labeled) into a word document. Write a conclusion summarizing the findings and trends.
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