Mechanics > Work and Energy > Conservation of Energy
DCS# 1M40.15

INTERRUPTED PENDULUM



APPARATUS
 
rods on magnetic mounts
202-01-E5
pendulum with aluminum bob
202-17-E6

DESCRIPTION
Stick the hook to a steel-backed chalkboard or whiteboard and suspend the pendulum from it.  Mark the release height with a reference line and release the pendulum bob to show that it returns to the same height whether or not the stop is inserted.