In our science class we were asked to follow the procedures of an experiment, that involves building a robot. We were distributed into twos, so each one of us had a partner to work with. The study of this experiment was to determine the distance and the velocity the robot travelled within a certain power, and a certain time.
I have never built a robot before, however; it was such a great experience. Putting the wheels, the battery and all the equipment needed was a fun experience. After the robot was built we were asked to test how far and how fast the robot travelled. It took us a couple of times to move the robot, finally; it worked and it started moving. We were asked to calculate three numbers of powers and for each power we had to do three trials.
Below I will demonstrate the results we came up with for every power. I will present to you the distance the robot travelled that is calculated by the computer, as well as the distance travelled that we calculated, moreover the velocity and lastly the percentage of error.
| Time/ sec | Distance (m) | Distance | Velocity(m/s) | % error |
| Power 25 | ||||
| Trial #1 | 0.191 | 0.1939 | 0.0656 | 1.506884905 |
| Trial #2 | 0.2 | 0.2033 | 0.06778 | 1.636498884 |
| Trial #3 | 0.197 | 0.19789 | 0.065964 | 0.450758439 |
| Power 50 | ||||
| Trail #1 | 0.499 | 0.50865 | 0.16955 | 1.915347591 |
| Trail #2 | 0.5 | 0.50617 | 0.16872 | 1.226432909 |
| Trial #3 | 0.508 | 0.5146 | 0.17154 | 1.290827303 |
| Power 65 | ||||
| Trial #1 | 0.718 | 0.72146 | 0.24049 | 0.480735831 |
| Trial #2 | 0.706 | 0.71699 | 0.23899 | 1.544634889 |
| Trial #3 | 0.71 | 0.71898 | 0.33966 | 1.256840544 |
In conclusion, looking at the results above, we can see how both the distance and the velocity increase as the power increases. As for the percentage of error, it was acceptable since accuracy and precision in the experiment were affected by human and systematic errors.