Education
Percussion Wall
What happens?
This exhibit, along with the walk on piano, guitar, pipes etc. is designed to encourage visitors to explore the world of sound. There are several ways to make sound but the most basic is simply to hit one object with another. In this case, it is hitting the various cymbals and triangles with the wand provided.
How does it work?
All sound is caused by vibration. Hitting the cymbal or triangle causes it to vibrate. These vibrations travel to the ear through sound waves (vibrations in the air like ripples on a pond) and are translated through vibration of the eardrum and the tiny bones and hairs within the ear. By playing with the percussion wall visitors will notice that a smaller cymbal or triangle gives a higher pitch or note when struck. This is because the frequency of the vibration is greater. Sound vibrations are measured in Hertz. One Hertz is one vibration or sound wave per second.
Why is it important?
Sound is all around us and is an integral part of understanding the world. Visitors are encouraged to listen carefully and notice the different sounds from different-sized cymbals etc.
How does it relate to the curriculum?
- Provides opportunity for sharing and playing together.
- Exploring music and the senses.
- Simple cause and effect relationships.
- Science: the physics of sound, vibration and sound, exploring materials.