Apparatus for students to determine the gravitational constant “g”, which is one of the most fundamental and early physical constants students must derive and observe.
This economical kit has a wooden base, 1.1m rod and a movable electro magnet. The electromagnet can be moved anywhere on the rod and is powered by the timer. When the ball is released the timer is triggered and stopped one the ball his landed on the base for a precise measurement and then calculation of ‘g’.

Supplied with manual.