To measure period and length of Borda’s pendulum, to measure g factor. 

  Knife Edge(1) : steel, rotation vice

 
Knife Edge Base(1) : Steel, parallel screw 

Large Stand Base(1) : weight 4kg 

Stand Rod(1) : 1500mm
Ruler(1) : 240mm 

Pendulum(1) : Brass, 40mm dia., weight 300g 

Brass wire(1) : 0.3mm dia., Length 1500mm 

OPTION

Segye photogate timer system(1) : SG-9630S
Accuracy: 0.01% of full range of the measured time
Display: 2-line, 16-character, LCD
Inputs: Two 1/4" stereo phone jacks on side panel - TTL compatible.
Resolution: 100 sμ 

Photo gate sensor(2)
Stand : 2EA
9V : adaptor