Sturdy car: The drop test

Design and construct a car that remains intact when dropped from ankle to mid-shin height onto the floor. Vary the drop height to make the activity more or less challenging.

drop_test  rcxsturdycar


Hint: The car doesn’t necessarily have to include the EV3, NXT or RCX brick (and saving the brick from a hard knock might help it last longer). Does including the brick make it more or less stable?

Note: The lesson plan attached to this post was designed as part of a series of introductory WeDo lessons but is relevant to all building systems (i.e. RCX, NXT, EV3, …).


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The Tufts Center for Engineering Education and Outreach (CEEO) in Boston, Massachusetts, is dedicated to improving engineering education in the classroom, from Kindergarten to college. The Center houses faculty, staff, and graduate students from engineering disciplines and the education department.

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