Experiment 1
| Distance away from middle | Description of sound |
| 1 cm | Low drum beat |
| 2 cm | Higher than 1 cm |
| 3 cm | Higher than 2 cm |
| 4 cm | Higher than 3 cm |
| 5 cm | Higher than 4 cm |
Experiment 2
| Tightness | Description of sound |
| Tightest | Higher pitch than tight |
| Tight | Higher pitch than short |
| Loose | Low, soft sound |
| Thickness of Rubber Band | Description of sound |
| Thick | Low drum |
| Thin | Higher drum |
| Length of rubber band | Description of sound |
| Shortest | High pitch, soft sound |
| Long | High pitch, louder sound |
| Longest | High pitch, loudest sound |
Conclusion Questions:
How did the sound change when you changed the amplitude (how far the rubber band was away from the middle point)?
The pitch of the sound gets louder.
What happened when you changed the thickness, length, and tightness of the rubber band?
1- The thicker the rubber band the lower the pitch of the sound.
2- The longer the rubber band the louder it is.
3- The tighter the rubber band the higher the pitch.
Sally is playing the guitar and notices that one of her strings is flat (pitch is too low). What can she do to fix it?
Sally should tighten her string. In this way, the pitch will be higher, and she won’t have a flat sound.
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