Get in Gear

1ft/2s
1. yes, it did
2. When the motor had more power it moved the wheels forward faster
3. If we put on a smaller gear there will be more wheel rotations per one turn of the large gear.
4. 2ft/1s which is faster than the 1ft/1s before
5. .5ft/1s. it was slower
6. Increase the motor power or swap the second gear to a smaller gear.
7. Decrease the motor power or swap the first gear to a smaller gear.
8. motor
9. i) the gears are the same size so it will move at the same speed
ii) much slower because the gear on the wheel is larger so there will be less rotations of it per rotation of the smaller motor gear
iii) it will increase or decrease the number of rotations per rotation of the gear on the motor.
iv) if the gears are both the same size, it will go the same speed. it the wheel gear is smaller, it will go faster. If the motor gear is larger, it will go slower.
10. i) When the motor rotated, it rotated the gear on the axis. This gear rotated the gear on the wheel. This gear rotated the wheel. However the gear on the wheel was smaller than the gear on the axis so it rotated more times. This in turn rotated the wheel more than before, therefore covering more distance.
ii) It works same as i but instead of being smaller, it was larger so it rotated less times and covered less distance.
iii) the formula assumes that for every rotation of the motor, the wheel is rotating the same. Therefore it assumes that the gear sizes are the same. It will not work if you have different sized gears.
11. i) So the smaller gear on the wheel and the largest gear on the motor
ii) large wheel small motor
iii) large wheel small motor
iv)large motor small wheel
12. different gears would work better for speed vs strength.