Simple pendulum kit

This pendulum is attached to a stand (not provided) with a square rod (maximum section 15 mm) or round rods (maximum diameter 16 mm).
The cord (to be ordered separately) is attached to the fork, itself fixed to the pulley which ensures a perfect and frictionless rotation.
The protractor allows you to determine the position of the pendulum at the moment of release and during the oscillations. A zone identified in blue verifies the law of isochronism of small oscillations.

1 pulley with high-quality ball bearings 1 simple pendulum support 1 protractor graduated -90°/+90°