Proportion and fractions with bicycle gears
- Use the big blue dot to pedal back and forth.
- Move the blue and red sliders to shift gears.
- How does the size of the front and back gear wheels affect the bicycle motion?
- Which combination would you use to go fast downhill?
- Which combination would you use to climb up a steep
- For further reading see http://en.wikipedia.org/wiki/Bicycle_gearing