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STEM Labs
To Do, or Not To Do

Now that you've finished the build, test what it does. Explore your build and then answer this question in your engineering notebook:

How would the speed of the arm change if the 60 tooth gears in Steps 55 and 58 were changed to smaller 36 tooth gears?Image of VEX IQ gears from the Kit

  • For help with this question, look at the rotational speed (RPM) of the 12 tooth gears (from Build Step 37) and compare it to the rotational speed of the 60 tooth gear by gently moving the arm up and down.

    • Observe how many times the 12 tooth gear rotates compared to the 60 tooth gear. How do you think this will change when the 60 tooth gear is replaced by a 36 tooth gear?

    • Be sure to justify your answer with data from your observation.