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Acceleration Due To Gravity Lab Report

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To verify the acceleration due to gravity, a toy car, with various masses hung onto it, was used to calculate acceleration using the formula a = slope x 2. The slope was calculated and graphed by rearranging and using the formula d = vi t + ½at2. After rearranging this formula, the acceleration, or slope, for each mass was calculated, and then after multiplying the slope by 2, the acceleration was used to verify acceleration due to gravity. The hypothesis that was given was that the mass will accelerate close to 9.81m/s2, which is the acceleration due to gravity. The hypothesis was supported by the knowledge that friction was a present force in this lab, acting against the toy car as it traveled across the table. The hypothesis was then proven correct as all the calculated values of the acceleration of gravity, for the different masses, were less than 9.81m/s2. …show more content…

For the 20g mass, there were 13 trials, and a total of 1.3s. The calculated value of the acceleration of gravity for the 20g mass was around 6m/s2, and the calculated friction was 0.07N, or 0.1N. For the 50g mass, there were 12 trials, and a total of 1.2s. The calculated value of the acceleration of gravity for the 50g mass was around 4m/s2, and the calculated value of friction was 0.3N. For the 100g mass, there were 8 trials, with a total of 0.8. The calculated value of the acceleration of gravity was also around 6m/s2, and the calculated value of the friction was 0.4N. For each of the masses, their corresponding displacement-time graphs had an exponential growth, as they were all accelerating. When their graphs were straightened, which was done by squaring the time, their trend lines were now

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Calculation: Initial Mass(g)－Final Mass (g)=Change in Mass (g) Trial 1 74.5-62.0=12.5(g) Trial 2 272.7－271.5=1.2（g） Percent Error: 272.7-271.5 x 100 272.7 ＝0.440% Percent Change: 74.5-62.0 x 100 74.5 (Trial 1) =16.778% 272.7-271.5 x 100 272.7 (Trial 2) ＝0.440%

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However, this is not true because there was error while conducting the lab due to the logger pro. Three out of the four masses were constant showing that acceleration is constant. The graph just shows otherwise because of error while conducting the lab. Overall the results of the lab conclude that acceleration will

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The final mass could be far off due to the water and chunks of expanded gummy bears found in the beaker, leading to an inaccurate result. As well, for the sugar solution, the result could have been different if a more accurate measurement of the sugar needed was made. For the specific result, the hypothesis stated, the sugar solution needed to have an equal amount of sugar content to the gummy bear which did not occur. Ensuring that the beaker contained 10 grams of sugar was off, due to prerequisite calculations that lead to too much liquid in the beaker that needed to be removed. To be correct, the hypotheses that were wrong could

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I could have made this car go farther with these three laws by making the car more aerodynamic. This way it would have less air friction pushing against it.

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