1- For questions 1-3: A ball is dropped using the procedure outline in Experimen
ID: 2282962 • Letter: 1
Question
1- For questions 1-3: A ball is dropped using the procedure outline in Experiment 02-A of the PHYS 2000 Lab Manual. A plot of velocity (m/s) vs. time (s) is made using DataStudio. The fit yields a slope of 9.67 + 0.05 and an intercept of -55.2+0.3.
Based on the data, what would we report as the mean value of the acceleration of the ball due to its gravitational attraction to the Earth?
9.67 m/s
9.81 m/s2
9.67 m/s
10.4 m/s
9.67 m/s2
2-Which of the following is a reasonable conclusion concerning the difference between the measured value and the accepted value for the acceleration due to gravity near the surface of the Earth?
A- The air resistance experienced by the ball combines with gravity to yield an acceleration greater (in magnitude) than the accepted value.
B- The value we report from the data agrees with the accepted value.
C- The air resistance experienced by the ball combines with gravity to yield an acceleration less (in magnitude) than the accepted value.
3-
Which of the following is a true statement relative to the intercept of the linear fit?
The initial value of the ball's acceleration was less than zero.
The negative value of the intercept is due to the experiment starting at a time later than t=0s.
The initial value of the ball's velocity was less than zero.
The initial value of the ball's acceleration was greater than zero.
The initial value of the ball's velocity was greater than zero.
9.67 m/s
9.81 m/s2
9.67 m/s
10.4 m/s
9.67 m/s2
2-Which of the following is a reasonable conclusion concerning the difference between the measured value and the accepted value for the acceleration due to gravity near the surface of the Earth?
A- The air resistance experienced by the ball combines with gravity to yield an acceleration greater (in magnitude) than the accepted value.
B- The value we report from the data agrees with the accepted value.
C- The air resistance experienced by the ball combines with gravity to yield an acceleration less (in magnitude) than the accepted value.
3-
Which of the following is a true statement relative to the intercept of the linear fit?
A-The initial value of the ball's acceleration was less than zero.
B-The negative value of the intercept is due to the experiment starting at a time later than t=0s.
C-The initial value of the ball's velocity was less than zero.
D-The initial value of the ball's acceleration was greater than zero.
E-The initial value of the ball's velocity was greater than zero.
Explanation / Answer
the correct answer is:
1) C
2) D
3) D
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