Name: ______________________________ Grade & Sec.:___________ Score:_________
Teacher:____________________________ Date:___________________ Rating:_________
Activity 1
My own sounding box
Objectives
In this activity, you should be able to construct a sounding box to
1. demonstrate how sound is produced; and
2. identify factors that affect the pitch and loudness of the sound
produced.
Materials Needed
shoe box
variety of elastic or rubber bands
(thin and thick)
extra cardboard – optional
pair of scissors or cutter
ruler
Procedure
1. Cut and design your shoe box as shown in Figure 2.
2. Put the rubber bands around the
box. Make sure that the rubber
bands are almost equally spaced and
that the rubber bands are arranged
according to increasing thickness
from the lower end to the other end
of the box.
3. Use your finger to pluck each rubber
band. Listen to the sound produced.
Q1. What physical signs did you
observe when you plucked each
band. Did you hear any sound? What produced the sound?
Q2. How different are the sounds produced by each band with
different thickness?
4. This time use the fingers of one hand to stretch one of the elastics. Pluck
the elastic with the fingers of the other hand and observe.
Q3. Are there changes in the note when you plucked the stretched band?