PASCO SE-9076 Constant Velocity Tubes - Manual (Page 20)

16
Constant Velocity Tubes 012–06697B
Experiment 1
➤ To preserve the “discovery” aspect of the lab, you will need to cover
the ends of the tubes with paper before the lab starts. A sheet of notebook
paper secured with rubber bands and masking tape works well. Scotch (or
cellophane) tape is very difficult to remove from the tubes.
7. Red or violet tube: 1 cm
Orange or blue tube: 9 cm
Yellow or green tube: 16 cm
8. The y-intercept is the position of the bubble at time = 0; more simply, it is the initial
position of the bubble.
9. The measurement should be approximately the same value as the value at the y-intercept.
10. The answers to 7 and 9 should be approximately the same.
11.
12. The result should be two parallel lines having the same slope but different y-intercepts.
The difference in y-intercepts is due to the different initial positions.
13. See graph above.
2 4 6 8 10 12 14 16 18
10
20
30
40
50
60
70
80
ELAPSED TIME (SECONDS)