How far and how fast are one of the in-class task which we have done. The purpose of this task is to teach the students how to use their robot EV3 to measure distance and velocity. Students will learn that adjusting motor rotation, motor power, and time values will affect distance and velocity in several different ways. Students will experience how weight and gravity has a role in the motion of the robot because of the extra weight the textbook adds.
How far:
NASA had asked us to use our data to make predictions about the distance our robot traveled with given specific time constraints. We measured the robot travels in different time values (1,2,3.5,5) seconds and different surfaces table, brick, and carpet. We gathered the data and plot the results on a graph.
After that, We converted each of these time and distances into a speed for each different power.
How fast:
How far:
NASA had asked us to use our data to make predictions about the distance our robot traveled with given specific time constraints. We measured the robot travels in different time values (1,2,3.5,5) seconds and different surfaces table, brick, and carpet. We gathered the data and plot the results on a graph.
Time
|
Table
|
Brick
|
Carpet
|
1 second
|
35 cm
|
24 cm
|
17 cm
|
2 seconds
|
65 cm
|
51 cm
|
37 cm
|
3.5 seconds
|
76 cm
|
61 cm
|
88 cm
|
5 seconds
|
110 cm
|
84 cm
|
120 cm
|
Power Level %
|
Brick (time)
|
Carpet (time)
|
Table (time)
|
Brick Speed
|
Carpet Speed
|
Table Speed
|
10
|
19.365
|
18.265
|
18.35
|
4.028 cm/s
|
4.27 cm/s
|
4.251 cm/s
|
30
|
7.1
|
6.76
|
6.625
|
10.986 cm/s
|
11.538 cm/s
|
11.774 cm/s
|
50
|
4.49
|
4.41
|
4.275
|
17.372 cm/s
|
17.687 cm/s
|
18.246 cm/s
|
70
|
4.03
|
4.405
|
3.4
|
19.355 cm/s
|
17.707 cm/s
|
22.941 cm/s
|
90
|
4.47
|
4.255
|
3.5
|
17.450 cm/s
|
18.331 cm/s
|
22.286 cm/s
|
How fast:
We had to observe the qualities of the different speeds and their effects on the different surfaces the robot traveled on. We had to measure the distance the robot traveled during a certain amount of time and calculate other distances based on graphing
This video shows the robot runs on the carpet. So, when the robot ran on the carpet, the resistance and friction were increased. This is because the material of the carpet and the material of the tires rub together, causing friction, which slowed the speed of the robot.
We had to collect quantitative data and determine speed by dividing distance and time. We also had to find averages in the data for accuracy. This is where the math portion of the experiment took place. We also had to use the technology of a platform and utilize the concept of surface area in order for this technology to be successful for instance the timers and measuring tape.
On the brick
This video shows the robot runs on the carpet. So, when the robot ran on the carpet, the resistance and friction were increased. This is because the material of the carpet and the material of the tires rub together, causing friction, which slowed the speed of the robot.
On the carpet
The table was the fastest surface in all areas. We agreed that for the most part, the table created the least friction and resistance for the tires of the robot and therefore moved at the greatest speeds with the exception of very lower powers (10%).
On the table
Power Level %
|
Brick 1
|
Brick 2
|
Brick Avg.
|
Carpet 1
|
Carpet 2
|
Carpet Avg.
|
Table 1
|
Table 2
|
Table Avg.
|
10
|
19.88
|
18.85
|
19.365
|
17.95
|
18.58
|
18.265
|
18.20
|
18.50
|
18.35
|
30
|
7.30
|
6.90
|
7.1
|
6.96
|
6.56
|
6.76
|
6.76
|
6.49
|
6.625
|
50
|
4.62
|
4.36
|
4.49
|
4.43
|
4.39
|
4.41
|
4.40
|
4.15
|
4.275
|
70
|
3.96
|
4.10
|
4.03
|
4.48
|
4.33
|
4.405
|
3.54
|
3.26
|
3.4
|
90
|
4.67
|
4.27
|
4.47
|
4.18
|
4.33
|
4.255
|
3.66
|
3.34
|
3.5
|
The hardest part is this challenge is to hang out to do each task on three different surfaces. We tried to finish all the tasks for one surface first and move to the other surfaces.
No comments:
Post a Comment