This Linear Air Track kit is designed to provide a cost-effective system for the study of all aspects of Dynamics in a virtually friction-free environment. It is particularly effective in the field of collisions where conservation of momentum is dramatically demonstrated.The kit contains everything required for a vast array of experiments covering:Velocity Motion and acceleration Potential energy Kinetic energy Conservation of energy Simple harmonic motion (SHM) Motion on level and inclined planes.Gliders are designed to accept standard slotted masses for additional load.The Air Track is supplied with a comprehensive accessory pack to facilitate every type of interaction.The accessories include Gliders / Vehicles with mass attachment catapults and buffers.For the measurement of glider speed Light Gates and Timers are required (B8H76786 or similar).Air Blower (B8H25341) is required but not included.Linear Air Track with accessories 2m length.