metal fork
Glass 2
Glass 1
Figure 2.
Procedure:
1. Label your glasses with Glass 1, Glass 2, and Glass 3 respectively.
2. Leave Glass 1 empty, Glass 2 with half full, and Glass 3 with full of water. (refer to the figure 2)
3. Knock the glasses with a metal fork and listen to the sound it produced.
4. Observe the sound produced by each glasses and record your observation on table 1.
Table 1. Water level and sound produced
Water Level
Sound Produced
Glass 1
Glass 2
Glass 3​​