Laboratory 6 ( chemistry), Summaries of Chemistry

Download Laboratory 6 ( chemistry) and more Summaries Chemistry in PDF only on Docsity! PROCEDURE First, all adjustments were made. The cart was connected to the tablet and its force sensor remotely zeroed using said tablet. The track was also adjusted as needed, with the rubber band stopper and pulley being lowered as much as need be. Second, the trials were conducted. The first set of trials conducted had the cart loaded with 500 grams, with each trial having added 5 grams more onto the weighted hook than the last. The same set of trials was repeated, with the only difference being that the cart was loaded with 250 grams instead of 500 grams. After both sets of trials had been conducted, graphs and data were taken from the tablet and recorded. DATA Table 1 - Variable gram loads acting on cart loaded with 500g on an Atwood Machine: Trial Net Force (N) ±0.000001 Acceleration (m/s^2) ±0.001 1 (5g) -0.013962 0.095 2 (10g) 0.038664 0.160 3 (15g) 0.080226 0.213 4 (20g) 0.131331 0.280 5 (25g) 0.173497 0.332 Net force for trial 1 was negative because the string’s tension was less than the friction of the cart’s wheels against the track. Table 2 - Variable gram loads acting on cart loaded with 250g on an Atwood Machine: Trial Net Force (N) ±0.000001 Acceleration (m/s^2) ±0.001 1 (5g) 0.062509 0.156 2 (10g) 0.113037 0.243 3 (15g) 0.164315 0.322 4 (20g) 0.205917 0.422 5 (25g) 0.257294 0.509 RESULTS AND ANALYSIS DISCUSSION AND COMMENTS Slope: 0.789 kg |789-750| * 100%= ------------ 750 5.2 %err or |542-500| * 100% = ------------ 500 8.4 %err or Slope: 0.542 kg