Instructions:

• Pulley Car has a motor and can be turned on with the flick of a switch
• To change pulleys, loosen the screws on the side and slide gear cone toward the motor
• Switch belts to different notches in gear
• Slide gear back in gear slot and tighten the bolt
• Have fun and enjoy!

STEP 1:
Change Belts to match this picture

Red to Blue                      Yellow to Yellow

Run the Car and Record:
Time to finish:_____________

Notes on speed:____________________________________________________________________________________________________________________

Change Belts to match this Assembly

Red to Blue_________________Red to Blue

Run the Car and Record:
Time to finish:_____________

Notes on speed:_____________________________________________________________________________________________________________________

Change Belts to match this Assembly

Blue to Red_________________Blue to red

Run the Car and Record:
Time to finish:_____________

Notes on speed:_____________________________________________________________________________________________________________________

Which belt combination was the fastest?
______________________________________________

Now it’s your turn!

• Change belt to whatever combination you want
• Try to make the car go the fastest!
• Draw the belts you used on the picture below

Belt colors used:  _________________                      __________________

Time to finish:_____________

Why did you choose these belts?
________________________________________________________________________________________________________________________