Designed for secondary schools and colleges, this apparatus enables precise measurement of gravitational acceleration ('g') by timing the free fall of a steel ball. It is ideal for physics experiments, supporting both teacher demonstrations and student investigations into motion and forces.

• Includes release unit (90mm x 45mm x 3mm) with metal clips and 4mm sockets

• Trip unit mounted on a 100mm x 100mm x 12mm base with micro switch and protective rubber strip

• Supplied with two steel balls (16mm and 19mm diameter)

• Durable construction suitable for repeated classroom use

• Retort stand and timer required but not included

• Spares available:

  • Spare clips for trapdoor: B8R08204 - Pack of 10

  Associated Products:

  • Timer Required: UNILAB Multi-Timer - PP00058200

  • Basic Retort Bundle - PP051936

  • Economy Boss Head - B8A82