Science project

Creating Sound Through Vibrations

Research Questions:

  • How do vibrations create sound?
  • How can the pitch and volume of a sound be changed?

Sounds are all around us. We hear sound from the radio, when we drop something on the floor, and when we ring a doorbell. Where does sound come from though? Sound comes from vibration. Vibrations are rapid, back-and-forth movements and can be caused by plucking guitar strings, beating a drum, or by simply flicking a paper clip or rubber band. Sounds can vary in volume and pitch based on how the vibrations are created.


  • Ruler
  • Rubber bands of different lengths and thickness
  • Tuning fork

Experimental Procedure:

  1. Place a ruler on a table with most of it sticking out over the edge. Firmly hold the part on the desk while plucking the free end of the ruler with the other hand. Watch and listen closely. Record your observations. (See sample chart below.)
  2. Have an adult carefully stretch one of the rubber bands while you pluck it. Record your observations. 
  3. Repeat this step with rubber bands of varying lengths and thickness. Record your observations.
  4. Carefully strike the tuning fork against the bottom heel of your shoe. (Note: Striking a tuning fork against something hard can damage the tuning fork. This is why you should strike it on the rubbery sole of your shoe.) What do you observe? Record your observations. 
Sample chart:
What did you see?
What did you hear?
Rubber band 1
Rubber band 2
Rubber band 3
Tuning fork
  1. What would happen to the volume if you plucked each object a bit harder? Try it!  

Terms/Concepts: Sound; Vibration; Pitch; Volume


a. b.

Disclaimer and Safety Precautions provides the Science Fair Project Ideas for informational purposes only. does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against that arise thereof. In addition, your access to's website and Science Fair Project Ideas is covered by's Privacy Policy and site Terms of Use, which include limitations on's liability.

Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.

Add to collection

Create new collection

Create new collection

New Collection


New Collection>

0 items