Sunday, May 8, 2011

Tunning Fork Lab

Guiding Question:  How does the density of a material affect the properties of sound traveling from a tuning fork?
Hypothesis:  If the dense of the surface is high then the pitch will be lower. 
Material: 

  • Tuning fork
  • Two types of surface:
    • wood
    • glass
Procedure:
1. Take a pencil and a notebook before you get started with your experiment, because you wouldn’t want to miss something out, otherwise everything would be incorrect.
2. Take a tuning fork of normal size and hit it on each material. You should feel the vibration of the tuning fork while you’re holding it.
3. Get a timer/watch stop and time how long the tuning fork vibrates. Save your observations on a document or in your notebook.
4. Repeat the steps above.


Material
Observation
Wood
Long vibration, lasts for long time
glass
Annoying sound, loud and intense 
Conclusion: My hypothesis was right if the material has higher dense then it will have a lower pitch.

1 comment:

  1. What happened to the data analysis? How do you know? What would you change about your lab procedure?

    ReplyDelete