Hooke's Law Apparatus

To demonstrate that the relationship between the extension on a spring 

is proportional to the load applied to it. This complete apparatus has a 150mm adjustable mirror 

scale to prevent parallax error and is marked in millimetres and mounted on a sturdy 300mm 

rod. Attached to the rod is a hook supporting a coiled spring with a mass hanger and indicator. 

Supplied complete with a 250g slotted weight set, the apparatus is mounted on a wooden base.