Gears and Speed

1-2. see chart
3. i) Real world error.
ii) see chart
iii) To calculate the average speed
4. see chart
5. it only has a gear ration of 1 so it doesn't tell us anything.
6. you would be excluding the robot traveled before the back wheels hit the front line.
7-14. see chart
15. i) 18.64
ii) 52.28
iii) no
16. i) 51.77
ii) 52.28
iii) yes
17. i) hypothesis B
ii) The predicted value for hypothesis B matched the actual speed on the chart
iii) yes, all you have to do is disprove it in one instance and its incorrect.
iv) no,simply proving that it works once does not prove that it works all the time.
v) B
18-21. see chart
22. i) 51.77
ii) 18.61
iii) no
23. i) 18.64
ii) 18.61
iii) yes
24. i) B
ii) The predicted value for hypothesis B matched the actual speed on the chart both times
iii) still yes, all you had to do was disprove it in one instance and its incorrect.
iv) no,simply proving that it works more than once does not prove that it works all the time.
v) B because it is the only one that works and it has been accurate so far
25. We tested a robot with the same size gears then tested a robot with smaller than larger gears. We then compared the speeds for the different gear robots with the predicted values for the theories. Theory B was very close to actual speed each time so we support hypothesis b.
26. i) b
ii) a
iii) directly
iv) directly
27. (36/3)*(16/16)=(x/3)*(18/6) x=12 cm
28. 1.5*1= x*(8/24) x=4.5 NO
29. 9*(1)=15*(36/x) x=60