Item no.: F04a

Description
Use sonic to make standing wave in the air column, measuring the effective propagation velocity  of sound or measuring with tuning fork.

Equipment

1. Resonant
   1-1. Aluminum triangulum x1
   1-2. Aluminum square-shape column: long 100cm base, plastic safety base.
   1-3. Water tank: 1,000ml translucent safety plastic cup, 1m silicone tube, metal drain.
   1-4. Resonance tube: made by glass, diameter 4cm/ long 105cm with footage number, safety plastic covered on the mouth of pipe, side of the end of pipe connect with another pipe which let water in and out.
2. 512Hz standard aluminum tuning fork with mallet.
3. 650Hz tested aluminum tuning fork.