left
right
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Turn the large gear to the right. Which way does the small gear turn?
left
right
Turn the large gear.
At which speed does the small gear turn?
slower
same speed
faster
Turn the large gear around one time. How many times does the small gear turn around?
one time
two times
three times
Try Again
Gears change the force, speed, or direction of motion within a machine. See how these gears work together. Click and hold down the "left” or "right" button to turn the large gear.
Well done!
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