Sound Lab

Guiding Question: How does the medium a sound travels through affect it?

Hypothesis: I think the thicker the band the lower the sound.

Materials:

Elastic bands

Partner

Procedure:

First get with you partner and get rubber bands of different shapes and sizes, then pull them while you partner plucks the string at different lengths and record what you heard. Then create a lab.

Data Analysis:

Thickness of rubber band:

Thick: a low, barley hear able pitch.

Thin: a higher and longer pitch.

Tightness of rubber band:

Loose: No sound at all

Tight: A low Slapping sound

Very tight: A high slapping and a long lasting vibration.

Length of rubber band:

Longest: A high slapping and a long lasting vibration.

Long:A low Slapping sound

Loose: No sound at all

Conclusion:

In this experiment I found out that the tighter and thinner the rubber band, the louder the sound and pitch will be when you pluck it, and it will vibrate for much longer. Rubber bands make sound through hitting each other or vibrating.

Further Inquiry:

If I were to do this experiment again I would try different kinds of rubber bands to see if that also affects the sound they make and how long they make it.