Construction Page
Bells
Purpose - The purpose of this
experiment was to discover new ways of establishing sound waves. With the sand, people are able to see how
sound waves affect objects and what kind of waves they project.
Materials:
90-lb Nylon Monofilament Fishing Line $36.99
5/8” steel straps $6.20
Bow Saw $30.49
Rosin $6.99
Sand $4.99
Msc. Supplies (paper and cardboard) $5.00
Plywood $20.00
Procedures:
1.
Make a 2x4 foot rectangle with the plywood.
2.
Take a piece of cardboard or a flat piece of plywood
and fit it underneath the frame of the rectangle.
3.
Next, make wooden beams in the middle of the rectangle
for support using the plywood.
4.
Attach two metal rods to each supporting beam so that
they stick up vertically from the unit.
5.
Attack a round metal disc to one stick and a square
metal disc on the other.
6.
String the fishing line along a bow up to the two
metal discs
7.
Finally pour sand on each disc
8.
String the bow to make a noise and see the vibrations
Since Bells was already made before our experiment, our group was able
to save a lot of money. We ended up not
buying anything for this project since the group and supplies already at home
like the sand, cardboard, and plywood.
Construction Page
Exhibit Study Guide