PASCO SE-9076 Constant Velocity Tubes User Manual

Page 16

Constant Velocity Tubes

012–06697B

13. Select a tube with a bubble that travels at a distinctly different speed. In this tube, does the

bubble move faster or slower than the previous two you tried?_______________ Take

position–time data for this tube and enter it into a new data table, but plot the points on the

same graph you used before. Draw a best-fit line for this data, too.

14. Compare this line to the other two lines. Try to explain the reasons for any similarities or

differences, including the different slope. Unwrap the paper from this third tube to verify

your explanation. Replace the wrapping.

______________________________________________________________________________________________________________________________________________________________________________________________

_______________________________________________________________________________________________

➤ The remainder of the analysis may be performed outside the lab.

15. For each of the three tubes you experimented with, calculate the slope of the best-fit line.

Fill in the blanks showing the results of your intermediate steps, as well. Don’t forget to

include units of measurement.

Color of tube:__________

First Point:

y-coordinate _____________

x-coordinate ______________

Second Point:

y-coordinate _____________

x-coordinate ______________

rise = __________________

run =

______________

slope = ______________________

Color of tube:__________

First Point:

y-coordinate _____________

x-coordinate ______________

Second Point:

y-coordinate _____________

x-coordinate ______________

rise = __________________

run =

_____________

slope = ______________________

Color of tube:__________

First Point:

y-coordinate _____________

x-coordinate ______________

Second Point:

y-coordinate _____________

x-coordinate ______________

rise = __________________

run =

______________

slope = ______________________