|
Distance (book lengths) |
Time (sec) Trial 1 |
Time (sec) Trial 2 |
Time (sec) Trial 3 |
Time (sec) Trial 4 |
Average Time (sec) |
Average Time squared (sec2) |
| 1 | 1.14 | 1.06 | 1.30 | 1.03 | ____ | ____ |
| 2 | 1.75 | 1.47 | 1.28 | - - | ____ | ____ |
| 3 | 1.67 | 1.56 | 1.73 | 1.94 | ____ | ____ |
| 4 | 2.52 | 2.41 | 2.12 | 2.25 | ____ | ____ |
| 5 | 2.30 | 2.50 | 2.51 | 2.68 | ____ | ____ |
| 6 | 3.04 | 2.85 | 2.76 | 2.78 | ____ | ____ |
| 7 | 3.04 | 2.96 | 3.21 | 3.06 | ____ | ____ |
| 8 | 3.28 | 3.28 | 3.16 | 3.13 | ____ | ____ |
| 9 | 3.19 | 3.28 | 3.51 | 3.47 | ____ | ____ |
| 10 | 3.54 | 3.40 | 3.60 | 3.63 | ____ | ____ |
- Make a cover page which has the title of the lab, your name, the date of the lab, and a diagram of the lab set-up (including the wheel-and-axle) with labels.
- Calculate Average Time and Average Time Squared for each row and fill in the blanks in the table
- Graph Distance vs Average Time, making sure you
- mark the axes evenly and label them (Average Time on the horizontal axis)
- at first, plot only the data points (points -- NOT bars!) without any connecting lines
- include (0,0)
- draw the best-fit curve on your graph
- determine how good the fit is (find the correlation coefficient if you are able)
- Graph Distance vs Average Time Squared, making sure you
- mark the axes evenly and label them (Average Time Squared on the horizontal axis)
- at first, plot only the data points (points -- NOT bars!) without any connecting lines
- include (0,0)
- draw the best-fit line on your graph
- determine how good the fit is (find the correlation coefficient if you are able)
- Find the slope of the graph line in books/sec2. How does this relate to the average acceleration of the wheel-and-axle down the ramp?
- Error Analysis: Determine how accurate this lab was. Say why.
- Describe, within the limits of accuracy of this lab, whether our results are consistent with the hypothesis that the wheel-and-axle accelerates uniformly.