Post Lab Assignment-1.docx

Post Lab Assignment-1.docx - Post Lab Assignment – Lab...

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Post Lab Assignment – Lab 1 (A) and Lab 1 (B) Sarah Kerr Due: 2/12/2019 Section: 55 Group: 4 Lab 1(a) 1. Looking at all three measurements for the speed of the cart and its uncertainty, how precise were your measurements of the speed of the cart? A: When looking at all three trials of the speed of the cart down the ramp, there is not a direct measurement to which we are comparing to for accuracy. However, in terms of precision, each of the three trials has an uncertainty of 0.02 cm/s which is a more precise measurement than say 0.30 cm/s. Therefore the precision of each trail is equal. The average speeds of each trial without uncertainty were 11.40 cm/s, 11.54 cm/s, and 12.12 cm/s respectively. Trial 1 and 2 were very similar to each other, while trial 3 was 0.72-0.62 cm/s off from the first 2 trials. In terms of comparing the three trials to each other you would think initially that trial 3 was less accurate than the first two. In terms of precision, all three are equally precise, trial 1 being slightly more so when extending the significant figures to 4 (0.0178 cm/s).
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  • Fall '17
  • ian morrison
  • Accuracy and precision, 0.02 cm, 0.30 cm, 0.0178 cm

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