Find the relationship between wheel size, motor rotations, and distance traveled by the whole robot

Develop a procedure that allows you to convert a linear distance into motor rotations so your robot can move a precise distance you have measured

Implement positive teaming, collaboration and interpersonal skills into the group dynamic

Teams will plan, prioritize, and manage for results

Teams will be adaptable, strive to manage complexity, and operate under self-direction

Wheels and Distance - Group Roles: (No Last Names & each member should have a different job than the last activity)

Role

Name

Project Manager -

Helen

Programmer -

Marshall

Materials/Quality Control-

Helen

Communications/Scribe -

Cory

Condition 1.2 - Measure & Predict :

Item

Big wheel

Wheel Diameter

5.6000 cm

Circumference of wheel (C=d*Pi)

17.59cm

Number of Motor rotations (360º = 1 rotation)

2 rotations

Predicted distance of travel

35.18 cm

Condition 1.3 - Run and Measure

Following the directions, set up a starting point for your Taskbot, however, use a tape measure (not a yard stick). Post a video in the table showing your Taskbots three trials. In the same three columns, post the three distances traveled. Finally, average your trials.

Taskbot video

Trial 1

Trial 2

Trial 3

Average of Trials

35cm

35cm

35cm

Average
Distance
= 35cm

Condition 1.4 - Evaluation:

Look at the data in your table (Condition 1.3).

Did the robot go the exact same distance in all three trials? Yes.

What are some possible reasons for these results? The robot was programmed to go the same exact distance every time.

Calculate the average distance that the robot went with these wheels and this program [Average Distance = (distance 1 + distance 2 + distance 3)/3]. 35 cm.

Compare the average to the predicted distance from Table 1.2.

Was the average of the distances you measured close to what Dr.Turner’s hypothesis predicted it would be? Yes.
Does this support the hypothesis? Why or why not? Is this set of trials alone enough to prove or disprove how valid the hypothesis is, in general? This supports the hypothesis because it was only 0.18 cm off of our real measurement. (Could be human error) In general, yes. The hypothesis is sometimes even more accurate due to math and no human error. It is enough to prove because the robot will go the same distance every time.

Condition 2.2 - Measure & Predict : (You are changing the wheels you use. Be sure you have the correct set)

Item

Small wheel

Wheel Diameter

3.000cm

Circumference of wheel (C=d*Pi)

9.42cm

Number of Motor rotations (360º = 1 rotation)

2 rotations

Predicted distance of travel

18.84cm

Run and Measure (Again, video these trials)

Taskbot video

Trial 1

Trial 2

Trial 3

Average of Trials

20cm

18cm

18cm

Average Distance
= 18.66cm

Condition 2.3 - Evaluation:

What is the average distance the robot ran with these wheels? Is this average a good representation of the data you gathered in this Condition, or does the data look nothing like the average?

Look at the data in your table.
i. Were the average measured distances about what Dr. Turner’s hypothesis
predicted they would be? Not exactly. But it was close enough. The hypothesis was 18.84cm, but our average was 18.66cm.

ii. Do you think you have enough evidence to reasonably accept or reject
how valid the hypothesis is now? Yes, we have enough evidence because we did 6 trials with different sized wheels. Plus we have video evidence and calculations.
iii. If so, do you accept or reject it? If you are not sure, what additional testing
could you do to help you decide? We accept it because both times it was close enough for it to simply be human error as the difference.

Goals:Wheels and Distance - Group Roles:(No Last Names & each member should have a different job than the last activity)RoleName## Condition 1.2 - Measure & Predict :

Item## Condition 1.3 - Run and Measure

## Following the directions, set up a starting point for your Taskbot, however, use a tape measure (not a yard stick). Post a video in the table showing your Taskbots three trials. In the same three columns, post the three distances traveled. Finally, average your trials.

Taskbot videoTrial 1Trial 2Trial 3Average of TrialsDistance

= 35cm

## Condition 1.4 - Evaluation:

Does this support the hypothesis? Why or why not? Is this set of trials alone enough to prove or disprove how valid the hypothesis is, in general?

This supports the hypothesis because it was only 0.18 cm off of our real measurement. (Could be human error) In general, yes. The hypothesis is sometimes even more accurate due to math and no human error. It is enough to prove because the robot will go the same distance every time.

## Condition 2.2 - Measure & Predict : (You are changing the wheels you use. Be sure you have the correct set)

Item## Run and Measure (Again, video these trials)

Taskbot videoTrial 1Trial 2Trial 3Average of Trials= 18.66cm

## Condition 2.3 - Evaluation:

i. Were the average measured distances about what Dr. Turner’s hypothesis

predicted they would be? Not exactly. But it was close enough. The hypothesis was 18.84cm, but our average was 18.66cm.

how valid the hypothesis is now? Yes, we have enough evidence because we did 6 trials with different sized wheels. Plus we have video evidence and calculations.

iii. If so, do you accept or reject it? If you are not sure, what additional testing

could you do to help you decide? We accept it because both times it was close enough for it to simply be human error as the difference.