UGA PHYSICS 1111 LAB ACTUAL
EXAM SCRIPT FULL QUESTIONS
AND CORRECT ANSWERS
◉ LAB 1: error & accuracy & %error & diff. Answer: -Error: diff
between value of physical quantity determined by experiment and true
value
-Types of error may occur during an experiment: experimentalist not
take the time to be as accurate & detailed
-Accuracy: percentage diff or absolute diff
-Percentage Error = (Estimated- Actual)/ (Actual) x 100
Percent difference= (value 1 - value 2/ ((value 1 + value 2)/2)) * 100
◉ LAB 1- precision. Answer: -related to way u carried out
measurements & how u reported ur results
-precision of a number indicated by # of sig figs used
◉ LAB 1: Sig Figs. Answer: leftmost nonzero # = most sig
rightmost nonzero # = least sig
,◉ LAB 1: GRAPH PART:. Answer: -measured/dependent variable on y-
axis
-set or independent variable on x axis
-prediction is correct=results straight line w slope C
-equation for straight line: y =(slope)x + (intercept)
◉ LAB 1: graph continued. Answer: -BEST LINE FIT: line agrees w/
trend of plotted data points
-SLOPE EVALUATED: drawing right triangleABC & THEN
DETERMINE LENGTH OF THE SIDES AB AND BC-slope is ratio of
bc to ab
◉ LAB 1: apparatus. Answer: apparatus: studies straight line motion
◉ LAB 1: The Air Track. Answer: -air track level w no friction=air track
not move
-not leveled=gilder will move back n forth and it could be adjusted by
the bolt on the bottom
◉ LAB 1: air track. Answer: when track is lvl, push glider & watch
motion
-overtime glider does slow down & eventually stops. (friction reduced
but NEVER ZERO)
, ◉ LAB 1: air track continued
sources of friction slowing glider down. Answer: -air resistance
-friction from hitting bumpers
◉ lab 1: air track continued
cause glider to accelerate even after you let go (ignore friction). Answer:
-add more air once glider in motion
-tilting air track
◉ lab 1: air track continued
yellow ruler stip on air track measures. Answer: distance between two
successive placements on glider
◉ lab 1: air track continued
what do ur results say ab accuracy of motion detector? Answer: -affects
time & position based on where it started
◉ lab 1: air track continued
EXAM SCRIPT FULL QUESTIONS
AND CORRECT ANSWERS
◉ LAB 1: error & accuracy & %error & diff. Answer: -Error: diff
between value of physical quantity determined by experiment and true
value
-Types of error may occur during an experiment: experimentalist not
take the time to be as accurate & detailed
-Accuracy: percentage diff or absolute diff
-Percentage Error = (Estimated- Actual)/ (Actual) x 100
Percent difference= (value 1 - value 2/ ((value 1 + value 2)/2)) * 100
◉ LAB 1- precision. Answer: -related to way u carried out
measurements & how u reported ur results
-precision of a number indicated by # of sig figs used
◉ LAB 1: Sig Figs. Answer: leftmost nonzero # = most sig
rightmost nonzero # = least sig
,◉ LAB 1: GRAPH PART:. Answer: -measured/dependent variable on y-
axis
-set or independent variable on x axis
-prediction is correct=results straight line w slope C
-equation for straight line: y =(slope)x + (intercept)
◉ LAB 1: graph continued. Answer: -BEST LINE FIT: line agrees w/
trend of plotted data points
-SLOPE EVALUATED: drawing right triangleABC & THEN
DETERMINE LENGTH OF THE SIDES AB AND BC-slope is ratio of
bc to ab
◉ LAB 1: apparatus. Answer: apparatus: studies straight line motion
◉ LAB 1: The Air Track. Answer: -air track level w no friction=air track
not move
-not leveled=gilder will move back n forth and it could be adjusted by
the bolt on the bottom
◉ LAB 1: air track. Answer: when track is lvl, push glider & watch
motion
-overtime glider does slow down & eventually stops. (friction reduced
but NEVER ZERO)
, ◉ LAB 1: air track continued
sources of friction slowing glider down. Answer: -air resistance
-friction from hitting bumpers
◉ lab 1: air track continued
cause glider to accelerate even after you let go (ignore friction). Answer:
-add more air once glider in motion
-tilting air track
◉ lab 1: air track continued
yellow ruler stip on air track measures. Answer: distance between two
successive placements on glider
◉ lab 1: air track continued
what do ur results say ab accuracy of motion detector? Answer: -affects
time & position based on where it started
◉ lab 1: air track continued
