PIRA 200 Suspend a simple pendulum from a ringstand. 3A10.10 simple pendulum 3A10.10 Suspend a simple pendulum from a ringstand. An apparatus for open-ended investigation of the simple pendulum.
Bobs have adjustable length and are of different shape.
3A10.15 Suspend a bowling ball from the ceiling. M-81 Long pendula made of lead and cork are released simultaneously. A vertical leaf spring supported at the base has a movable mass. A piece of clockspring mounted vertically on a heavy base has an adjustable mass to change the period. The metronome as an adjustable pendulum.