Standing Wave
Light Sound and Waves
Gloveaphone
Enrichment Activity for 5-11 11-14
What you need
- A thin latex glove
- A straw
- A cardboard tube with open ends
- Tape
Instructions
- Cut a small hole in one of the fingers of the glove
- Feed the straw a small way through the hole into the glove. Seal off with tape
- Put the end of the glove over the cardboard tube and tape down the glove to the tube, making sure there are no gaps
- Pull the rest of the fingers of the glove down against the side of the tube so a tight skin is made at the end of the tube
- Blow into the straw until a sound is made. The glove should inflate
Results and Explanation
The latex glove vibrates as air flows down the tube. This creates a standing wave in the air along the length of the tube which we hear as sound.
