PHY131H1 Lecture 2: Lecture 2 - Motion + Error Analysis, in 2 columns for easy printing+reading, includes diagrams I drew on the computer

• School: UTSG
• Department: Physics
• Course: PHY131H1
• Professor: Jason Harlow

Document Summary

Eliminate need to report measurements w/ approximately / Give quantitative way or stating your confidence level in the measurement. = error o: 68% sure the actual # is btwn and , 95% sure the actual # is btwn-2 and +2. Answer = 10 2: 68% sure the actual # is btwn 8 and 12, 95% sure the actual # is btwn 6 and 14. Can be negative, zero, or positive if the object is stopped (even momentarily) Si unit = m/s per second = m/s2. Period of a pendulum t5 = time for 5 oscillations. Would be error if: smaller scatter, only 1 measurement taken, or if each measurement was 7. 53_s, but the stopwatch only shows up to the hundredth place. Is the best estimate for the error, since: is almost half the range of the measurements, and is for repeated measurements t5, avg = 7. 45250s.