Day 135: The Elevator Problem

Monday, 24 March 2014


I might have crammed every one of my classes today inside the building elevator to test how apparent weight changes when the elevator accelerates. Fortunately, my classes are small in numbers (biggest is 16) and in size (we were getting close to the elevator’s weight limit!), so we could all fit at one time — making the experience all the more fun.

We used spring scales and lab masses. Kids almost immediately observed that the weight changed when accelerating and returned to normal when the elevator was moving at constant velocity.



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